40 Silent Signs of Illness in Your Body

Sometimes serious illnesses don't scream—they whisper, making their presence known with vague, nonspecific symptoms that can easily be explained away. In some cases, they might not be noticeable at all. Others might surface suddenly and disappear. How will you recognize them for what they are: silent signs of illness? By reading this. Body Network researched some of the most common warning signals and asked doctors what you should do if you see them. Don't get paranoid; be informed.

Subtle Changes To Your Hair

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The eyes may be the window to the soul, but your hair can provide insight into your gut—and what nutrients you are (and aren't) putting in it. "A deficiency in protein and/or essential fatty acids can make your hair look dull, thin and/or be pluckable," says Amanda A. Kostro Miller, RD, LDN, a registered dietitian on the advisory board for Smart Healthy Living. "Other possible nutrient deficiencies that show signs in your hair: calorie restriction, protein malnutrition, iron, zinc, selenium, vitamin C, copper or manganese."

Body Network Says: "Always consult your doctor about changes," says Kostro Miller. "You may have a nutrient deficiency, or you could even have a more serious medical illness."

Chronic Fatigue

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We all get tired. But chronic, intractable fatigue can be a sign of several serious illnesses—including depression, cancer, Long COVID, and even heart disease. "The heart pumps blood to every organ in the body," says Joshua S. Yamamoto, MD, a Washington, D.C.-based physician and author of You Can Prevent A Stroke. "In the absence of good blood flow—particularly to the brain and muscles—the body feels fatigued."

Body Network Says: If you're experiencing extreme tiredness that won't go away with rest, talk to your doctor, who can help get to the bottom of the cause. Especially if you have previously had COVID.

Unexplained Weight Gain

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Unexplained weight gain can be related to a condition called hypothyroidism, in which the thyroid gland isn't producing enough of the hormone that makes your metabolism go. "In addition to weight gain, you might have other nonspecific symptoms like fatigue or sensitivity to cold," says Dina Merhbi, a registered dietitian in Montreal, Quebec.

Body Network Says: If you're experiencing any of those symptoms, ask your doctor for a TSH hormone blood test. Imbalances in thyroid hormone can be treated with medication.

Frequent Fungal Infections

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Recurrent athlete's foot, jock itch and yeast infections can be a major annoyance. They can also be an early sign of chronic illness. According to the American Diabetes Association, those fungal infections are “sometimes the first sign that a person has diabetes.” In people with the condition, a yeast called Candida albicans—which causes those common skin irritations—has an increased tendency to overgrow.

Body Network Says: The American Diabetes Association recommends that adults be tested for diabetes once a year. Diabetes can be treated with medication and lifestyle changes; untreated diabetes can lead to heart disease, vision problems and circulation issues that can lead to amputation.

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Facial Drooping

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"A new facial droop, with other signs such as arm weakness and/or speech difficulty, should be evaluated immediately by a doctor, as it can indicate a stroke," says Christopher Zoumalan, MD, FACS, a board-certified ophthalmologist in Beverly Hills, California.

Double Vision

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"Another less common condition is sudden onset of double vision and a droopy eyelid," says Zoumalan. "This can sometimes be the cause of a brain aneurysm, and immediate evaluation by a doctor is vital."

Subtle Changes to Your Fingernails

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If you notice changes in your nails like ridges, spooning nails, white lines or excessive brittleness, you may have deficiencies in iron, folate, vitamin A, protein or zinc," says Kostro Miller.

Body Network Says: See your doctor to rule out larger health problems, then "Talk to a registered dietitian to determine which nutrient deficiency is to blame," says Kostro Miller.

Unintentional Weight Loss

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"This can feel like a blessing if you're overweight, but it may be a sign that your body is not properly absorbing nutrients," says Nancy Woodbury, RD, LDN, a registered dietitian nutritionist in Boca Raton, Florida. That could have a few explanations. It could be a sign of Type 1 diabetes, in which the body stops producing insulin. "The lack of insulin causes weight loss and high blood glucose levels because the body's cells become starved for energy," she explains.

Unintentional weight loss can also be a sign of several cancers. "Weight loss can also be a sign of cancer, because cancer cells cause a derangement in metabolism that rapidly consumes energy in a way that is very different than the weight loss caused by low-calorie dieting," says Woodbury. "One clue is that consuming more calories from food is often not effective by itself to reverse cancer-related weight loss."

Body Network Says: Unexplained weight loss of 10 pounds or more can be a sign of cancer. It happens most often with cancers of the pancreas, stomach, esophagus, or lung, the American Cancer Society says. See your doctor if you're dropping weight without trying.

Clumsiness

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"Clumsiness is a symptom that is often ignored by patients and doctors alike," says Anthony Kouri, MD, an orthopedic surgeon with the University of Toledo Medical Center. "Because many of these symptoms are also things that occur as we age, it is passed off as simple aging by most people. Though some people may be naturally clumsy, this can also be a sign of something much worse."

Body Network Says: Clumsiness can be a sign of progressive nervous system disorders including Parkinson's Disease, multiple sclerosis and ALS. "Early symptoms may include tripping or bumping into things, clumsiness or hand weakness, difficulty holding small objects, and muscle cramps or twitching," says Kouri. If that's happening to you, schedule an appointment with your doctor.

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Coughing

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A cough is likely just a cold or allergy. But a recurrent cough should be investigated by a doctor. It's one of the symptoms of mesothelioma, a so-called "silent" cancer that takes decades to develop and is often diagnosed among the older demographic. "With asbestos exposure being this cancer’s only known cause, it historically has affected blue collar workers and military personnel," says Colin Ruggiero, a health advocate for mesothelioma.com. "Those who were susceptible to asbestos exposure should be mindful of the subtle symptoms that this disease presents, like chest pain, fatigue, muscle weakness and coughing. Commonly, mesothelioma will be misdiagnosed with the flu, pneumonia, and other less severe illnesses."

Body Network Says: If you do—or did—a job that's prone to asbestos exposure, tell your doctor, monitor any symptoms and keep regular doctor's appointments.

High Blood Pressure

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According to the American Heart Association, high blood pressure (a.k.a. hypertension) is often referred to as "the silent killer" because it often has no symptoms until it's done significant damage to your heart and arteries.

Body Network Says: If your blood pressure is normal (less than 120/80), the AHA recommends getting it checked at your yearly physical. If your blood pressure is high, your doctor may recommend checking it more often (including at home) and may prescribe lifestyle changes and medication.

Bleeding After Brushing

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If your gums have begun to bleed when you brush your teeth, talk to your dentist. "That bleeding you may see in the sink after flossing or brushing is no little issue," says Dr. Rhonda Kalasho, a dentist in Los Angeles. "Just imagine you were cleaning your knees and suddenly they started to bleed, you would probably be rushing to the emergency room."

The bleeding could be a sign of periodontal disease, the destruction of bone and tissue caused by a proliferation of bad bacteria below the gums and on teeth. "Periodontal disease is the number one reason for tooth loss," says Kalasho. "It has been linked to cardiovascular disease and Alzheimer’s disease. This bad bacteria can travel into the bloodstream, causing septicemia or infections on organs."

Body Network Says: "Make sure to brush, floss, and see your dentist at least 2-3 times a year for the best oral upkeep, not only for the sake of your teeth, but for your entire body," says Kalasho.

Bad Breath

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"Bad breath could be something benign, like having a little tooth much garlic in your dinner the night before, or could be linked to something more serious," says Kalasho. "Foul-smelling breath that doesn't go away even after you brush and floss could be caused by diabetes, liver disease, kidney disease, tonsillar stones, GERD or bronchitis."

Body Network Says: "Be sure to visit your dentist to rule out any serious cause for your bad breath," says Kalasho.

Eye Problems

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Most of us are on guard for the vision disorders that accompany aging, like cataracts and glaucoma. But eye problems can also signal diabetes. According to the American Diabetes Association, people with diabetes are 60 percent more likely to develop cataracts and 40 percent more likely to suffer from glaucoma.

Body Network Says: Get tested for diabetes regularly, particularly if you’re dealing with either of those eye issues.

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Itching

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Itchy skin can have a number of relatively innocuous causes, from allergies to dry air to a dusty bedroom. But protracted skin itching can be a sign of kidney disease. "Itchy skin can be a sign of the mineral and bone disease that often accompanies advanced kidney disease, when the kidneys are no longer able to keep the right balance of minerals and nutrients in your blood," says the National Kidney Foundation.

Body Network Says: If you have persistent skin itching, talk to your physician, who can order simple tests to rule out kidney problems.

Snoring

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Snoring could be a sign you have sleep apnea, a condition that's linked to a variety of serious illnesses, including cardiovascular disease. During sleep apnea, you stop breathing—for up to a minute—until the brain wakes you up to start breathing again. According to Harvard Medical School, sleep apnea is present in up to 83 percent of people with heart disease, and untreated sleep apnea could raise your risk of dying of heart problems by up to five times.

Body Network Says: If you've been told you snore, talk to your doctor about it.

Changes in Handwriting

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Handwriting that gets shakier or progressively smaller could be a sign of a nervous-system disorder such as Parkinson's Disease. According to the National Parkinson's Foundation, sometimes when people with the disease write in longhand, each sentence becomes smaller or words are more crowded together. Studies show that 97 percent of people whose handwriting changes this way are in an early stage of Parkinson’s.

Body Network Says: If you notice that your handwriting is changing, consult your health care provider.

Irritability

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If you're increasingly cranky about the literal or figurative kids on your lawn, you could be turning into a charming old curmudgeon—or you might be exhibiting signs of depression. Irritability is an lesser-known (but very common) symptom of the mood disorder, which is also characterized by chronic feelings of sadness, hopelessness or a loss of enjoyment in previously pleasurable activities.

Body Network Says: Talk with your doctor. Many treatment options are available.

Swollen Gums

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Gum disease, in which the gums are swollen or inflamed, could be a sign of heart disease, according to a study of more than 11,750 adults published in the journal Hypertension. Researchers found that half the people who reported being treated for high blood pressure also reported having gum disease. The connection isn't clear, but scientists think inflammation in the gums might trigger or worsen inflammation in other areas of the body, including arteries.

Body Network Says: Take good care of your teeth and gums, including twice-annual visits to the dentist for a checkup and cleaning.

Swollen Feet Or Ankles

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Swelling in your feet or ankles could indicate that you spent too many hours on your feet or that you overdid it at the gym. According to the National Kidney Foundation, kidney disease can cause fluid to build up in the body; swollen extremities could mean you're retaining sodium, which the kidneys aren't able to adequately clear from the blood.

Body Network Says: Swollen lower extremities could be a sign of several issues, some more serious than others, ranging from heart disease to varicose veins. If you're experiencing it on a consistent basis, see your health care provider to get it checked out.

Erectile Dysfunction

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If you're having difficulty getting or keeping an erection, your worries might not be confined to the bedroom. According to the Mayo Clinic, erectile dysfunction is often an early sign of heart disease. If your heart isn't pumping as it should, the arteries carrying blood to your penis might not be getting enough. (And therefore neither are you.)

Body Network Says: If you're experiencing ED, file your ego away and talk to your doctor ASAP.

Profuse Sweating

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In a study published in the journal Circulation, scientists analyzed data on more than 2,000 heart attack patients and found a surprising commonality. Nearly 54 percent of them had experienced profuse sweating as a symptom of their heart attack.

Body Network Says: Be aware of the common (and not-so-common) symptoms of a heart attack.

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Dry Eyes

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According to a study published in the American Journal of Ophthalmology, nearly 50 percent of patients with untreated hepatitis C reported lower tear production, a.k.a. dry eye. “Dry eye syndrome is the most frequently observed ocular feature in HCV [hepatitis C] infection,” wrote the study authors.

Body Network Says: Having dry eyes doesn't mean you have hepatitis C. But the condition can affect your productivity and quality of life, so consult your physician. Several treatments are available. And if you have risk factors for Hep C, get tested. New medications have made the condition increasingly curable; untreated, it can lead to liver failure.

Headaches

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Frequent or severe headaches are two lesser-known signs of high blood pressure. They happen because high blood pressure strains blood vessels in the brain, causing them to leak blood, which leads to swelling and pain.

Body Network Says: The American Heart Association recommends that you have your blood pressure checked once a year.

A Broken Bone

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"Perhaps one of the most under-screened and under treated conditions is osteoporosis," says Adam Kreitenberg, MD, a rheumatologist in Tarzana, California. "Osteoporosis is a 'silent' condition characterized by the progressive loss of bone mineral density increasing one's risk for bone fractures. There are no signs or symptoms of osteoporosis until a fracture occurs. The most commonly fractured bones are the spine, hips and wrists. Those at increased risk include post-menopausal women, and those people with poor nutrition, low body weight, frequent falls and those taking certain medications, like steroids and anti-seizure medications."

Body Network Says: "All women over 65 and men over 70 years of age should be screened for decreased bone density and their risk for fractures," says Kreitenberg. "Once diagnosed, osteoporosis may be treated with a number of different medications to decrease further bone loss and decrease the risk for bone fractures."

Sighing

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"Frequent 'deep sighing' can be a sign of poorly controlled asthma," says Brian Greenberg, MD, an allergist-immunologist in Los Angeles.

Body Network Says: We're all sighing more than usual these days. But if you notice that you're experiencing any breathing issues, see your healthcare provider.

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More Frequent Urination

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If you need to urinate more frequently, it could be a sign of diabetes. According to the Mayo Clinic, that happens when excessive glucose (sugar) builds up in your blood, and your kidneys spur more urination in an attempt to clear it.

Body Network Says: If you notice any change in your bathroom habits, call your doctor.

Changes In Urination

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If you're seeing a difference in your urine, such as foaminess, it could signify kidney disease. "Chronic Kidney Disease (CKD), which affects 31 million American adults, is sometimes known as a silent condition because it doesn't always make people feel sick in its early stages," says Jennifer Parker, RD, LDN, lead dietitian with Fresenius Medical Care in Gainesville, Florida. "Unfortunately, symptoms may not appear until the kidneys have stopped working well enough to filter blood on their own." Other signs of kidney disease include fatigue; itching; swelling in your hands, face or legs; shortness of breath; or pain in the small of your back.

Body Network Says: "Kidney function tests that can help detect CKD early at annual check-ups are simple and inexpensive," says Parker. "The National Kidney Foundation offers free kidney health screenings where you can get a better idea if you’re at risk or might already have some level of kidney disease."

Lifestyle changes that benefit the kidneys include quitting smoking, controlling blood pressure and blood sugar and eating a plant-heavy diet. "Decreasing your intake of processed foods, which are high in sodium and added sugars, and focusing on eliminating red meat can help," says Parker. "Start choosing fresh fruits, veggies, whole grains and beans today. Your kidneys, and your heart, will thank you."

Bloating

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Feeling gassy after eating—or prematurely full at meals—can be a sign that you ate too fast or gulped that grapefruit LaCroix. But persistent bloating can also be a symptom of ovarian cancer, the American Cancer Society says. Ovarian cancer is one of the hardest cancers to detect, because its symptoms (like bloating) can be vague.

Body Network Says: If you're consistently feeling bloated or experiencing digestive issues, discuss it with your doctor.

Burning in Your Chest or Throat

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Heartburn is usually a sign of acid reflux. But according to Harvard Medical School, it could also signify a "silent" heart attack, a.k.a. silent myocardial infarction (SMI). These milder heart attacks have less intense symptoms, with fatigue, physical discomfort, cold sweating, or mild discomfort in the center of the chest. Silent heart attacks account for 45 percent of all heart attacks and affect men more than women. But women are more likely to have non-traditional symptoms of a major heart attack, including nausea, indigestion, stomach pain or chest pressure that spreads to the throat.

Body Network Says: If you're experiencing unusual pain or discomfort in any part of your body, get it checked out.

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Shortness of Breath

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According to Splaver, signs of congestive heart failure can often mimic asthma. Shortness of breath, wheezing or coughing could be a sign your body is retaining fluid, which can occur when the heart isn't able to maintain proper circulation.

Body Network Says: If you're having chronic shortness of breath, see your doctor and describe your symptoms fully.

Night Sweats

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Waking up sweaty might be a sign of global warming, menopause or that you need to change your AC filter. But night sweats can also be an early sign of cancer, including lymphoma or leukemia.

Body Network Says: If you're having night sweats, see your doctor for a CBC (complete blood count) blood test, which includes a white blood cell (WBC) count. A high WBC could be a sign of cancer and warrants further investigation.

Feelings of Weakness

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Like a heart attack, a stroke can be "silent." In fact, "silent" strokes affect 8 to 10 million people each year—so many the American Stroke Association issued new guidance about them in 2016. "It's important to go to your family physician if there are concerns about neurological symptoms like weakness or speech difficulty," said Eric E. Smith, MD, an associate professor of neurology at the University of Calgary. "Silent strokes put people at risk not only for future symptomatic strokes but also for cognitive decline and dementia."

Body Network Says: See your physician if you have those symptoms—a "silent" stroke can be treated to prevent a full-blown stroke.

Easy Bruising

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Bruising more easily than usual, or having unusually large bruises, can be a sign of leukemia, according to the Leukemia & Lymphoma Society. They occur because leukemia destroys platelets, the cells in the blood that cause it to clot.

Wounds That Won't Heal

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Sluggish wound healing, or wounds that won't heal at all, is often seen as an unfortunate condition that accompanies aging. The real culprit is poor circulation, which can be a sign of diabetes.

Body Network Says:According to the Cleveland Clinic, if you have a sore that doesn't heal within three months, it qualifies as a chronic wound, and you should see a doctor about it as soon as possible. Untreated chronic wounds can result in infection, neuropathy and even amputation.

Sudden Vision Changes

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A sudden change in your vision—such as blurriness, fogginess or loss—can be disconcerting. It could also be the sign of a serious issue. According to the University of Virginia Health System, the explanation could be minor, such as migraine headache or, more rarely, a ministroke or transient ischemic attack (TIA).

Body Network Says: Any sudden change in vision should be reported to your doctor ASAP.

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Excessive Thirst

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If you're constantly feeling excessively thirsty, it could be a sign of diabetes. The condition is caused by high levels of sugar in the blood; the body reacts by requesting more and more water in an attempt to clear it.

Body Network Says: If you're experiencing excessive thirst, see your doctor, who may test you for diabetes.

Hearing Loss

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Hearing loss can sneak up gradually, and it's easy to explain away as a natural consequence of aging or people around you mumbling. But if you're not hearing as well as you used to, you don't have to live with it.

Body Network Says: Make an appointment with your primary-care doctor or a board-certified audiologist, who can evaluate your hearing and recommend hearing aids if you need them.

Scaly Patches on the Skin

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Some people mistake them for age spots, but they could be a sign of diabetes. Painless light brown, scaly patches (often oval or circular) appearing on the body, most frequently on the front of the legs, could signify a condition called diabetic dermopathy. Why? According to the National Diabetes Foundation, diabetes can cause changes in the body's small blood vessels.

Body Network Says: The American Diabetes Assocation recommends that adults be tested for diabetes once a year. If you notice scaly patches on your skin, see your primary-care physician or a dermatologist, who can help pinpoint the cause.

Jaw Pain

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Heart attacks can have unusual symptoms, including headaches, nausea – even pain in the jaw. According to a 2012 study published in the Spanish-language journal Medicina Oral Patologia Oral Y Cirugia Bucal, researchers found that about one in every 10 heart attacks begins as jaw pain.

Body Network Says: Pay attention to any unusual symptoms or pains that won't go away. Anything that just doesn't feel right should be checked out by a doctor. And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.

As a doctor, I know that it’s not always obvious that you are ill. Sometimes, symptoms and signs can creep up on you. You just aren’t sure whether to bother people like me. Remember: You're not a hypochondriac; you're looking after yourself! If you suffer from anything on this list, your doctor will be pleased to see you and relieved you made that appointment! It’s always the case that an early diagnosis gives the best chance of cure, so if you think something isn’t right, listen to your body and go and see a professional. Do you recognize any of the following scenarios? (And remember, Body Network provides the latest information from top experts, new research, and health agencies. However, our content is not intended to replace professional guidance. Always consult your healthcare provider directly for questions about your medication or any other health concerns.)

You Keep Turning Up the TV

...because you just can’t hear it. Is that just old age deafness creeping up on you? Or could your hearing loss be due to anything else? Check with an ENT if you're concerned.

Your Toes Feel Cold All the Time

...but when you touch them, they feel the right temperature. This might be peripheral neuropathy, "a result of damage to the nerves outside of the brain and spinal cord (peripheral nerves), that often causes weakness, numbness, and pain, usually in your hands and feet," per the Mayo Clinic. See your doctor!

You Can’t See to Drive at Night

Night blindness is very common. Old age causes hardening and yellowing of the lenses. This can be made worse by dry eyes. Get it checked out. Worst case scenario, it's a rare condition called retinitis pigmentosa—or maybe you simply need a new set of headlights!

You Develop a Multitude of Sleeping Problems

...and can’t get off to sleep, can’t stay asleep, sleep fitfully, wake early in the morning, feel tired and refreshed. Sleep disorders, including snoring and sleep apnea, as well as other sleep disorders, are very common. You may need professional help.

You Go to Make a Cup of Tea and the Teabag is Already in the Cup[

Memory problems are all too common. Forgetful? Tired? Menopause? Or could it be dementia? If you're experiencing memory loss that disrupts your daily life, discuss the issue with your doctor.

You Can’t Read a Text Message Without Reaching for Your Glasses

Are your eye tests up to date? Healthy eyes, healthy body!

You Keep Napping During the Day

Is that because of all those bad nights' sleep? She says you’re snoring—but could this be obstructive sleep apnea, in which the airway behind the tongue collapses when you breathe in, reducing or even stopping your airflow for up to a minute. Sleep apnea has been associated with high blood pressure and cardiovascular disease, according to the National Sleep Foundation. Researchers think that's because the condition causes repeated oxygen deprivation that stresses the blood vessels and heart.

Your Finger and/or Toenails are Going Yellow

Fungal nail infections may mean you have low levels of immunity. Time for a check-up.

You Can’t Stop Scratching

There’s something wrong with the skin you’re in, and there are a million causes for itchy skin—known as generalized pruritis: Allergies, scabies, eczema, psoriasis and liver disease. Go and get it checked.

The Shower’s Blocked—Again!

And what’s blocking it? Your hair—again! Hair loss—known as alopecia—has many unpleasant causes. See the doctor.

You’re Female—and Growing a Beard

Sporting sprouty hairs on your chin? Oh dear! Unwanted hair. This can be a sign of too many male hormones. It’s quite common at menopause—however, get it checked!

You Keep Needing a Bigger Hat

And your shoe size is increasing. This is rare but may be due to acromegaly—caused by overproduction of growth hormone.

You Find Yourself in the Laxative Aisle

Are you really that constipated? If it's a rare occurrence, maybe you ate something funny. If it happens frequently, you may not be getting enough fiber.

You've Got the Runs

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Keep running out of toilet paper? Someone has diarrhea. If this is a persisting change of bowel habit, don’t be embarrassed. This is especially urgent if there is blood in your stool. Seek help!

You're Always Thirsty

Are you really that thirsty—or too thirsty? Excessive thirst can be a sign of diabetes. Go and see your doctor for a test.

You Constantly Need to Pee

There can be many reasons for this. Diabetes is a common cause. Urinary infections and prostate problems. Don't leave it—do go and see your doctor.

It Kills You to Run for a Bus

Is this just because you’re unfit—or is there something wrong with your heart or your lungs? Time for a physical.

You Wheeze in the Cold

And you cough in the night. This could be asthma. It’s very treatable—make an appointment.

You Constantly Reach for Tums

It's this constant indigestion. What's causing it—reflux, gastritis, or a stomach ulcer? Are you taking too many painkillers—for example, ibuprofen (a non-steroidal anti-inflammatory, NSAID), which can irritate the lining of your stomach? Don’t leave this until it’s too late—see your doctor.

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You're Taking Too Many Types of Medication

The list of medicines on your repeat prescription can get ridiculously long. Ask your doctor for a medication review.

You Need to Wear Pads or Tampons All the Time

It’s either frequent bleeding, vaginal discharge, or urine. Whatever’s going on, this isn't your new normal—it's time to see the doctor.

You're Sawing Logs

I’m afraid the rest of the campsite are only too aware who is keeping everyone awake with their express-train snoring! Loud snoring is a feature of sleep apnea, which is a serious medical condition. Snoring is actually not funny, it’s a serious business. It can cause heart failure and death—see the doctor.

When You Pee, it Looks Like a Pint of Guinness

See the doctor. You might be jaundiced—it’s a sign of liver disease.

Your Skin Has a Dreadful Flare-Up

This could be due to stress, secondary skin infections, or even, rarely, a sign of HIV infection. See the doctor.

You Can't Climb Up the Stairs

Could you be anemic? Or is there something wrong with your heart and lungs? Go and see your doctor.

You Wake Up Breathless in the Night

This may be because you have slipped down off your pillows and are too flat in the bed. It’s called paroxysmal nocturnal dyspnoea, and it’s a sign of heart failure.

You Can't See Your Toes

...or do up your shoelaces. If your abdomen is swelling this is most likely fat—sadly—but can be due to fluid in the abdomen, a.k.a. ascites. This is very serious so you must see the doctor.

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Your Bedroom Always Seems Too Hot at Night

Are you getting hot flashes or night sweats—that’s likely menopause for women. Or if you get a fever at night, take your temperature regularly—this could be a PUO, a.k.a., pyrexia of unknown origin (fevers that last more than three weeks without any idea why). See your doctor.

Your Pants Slip Down Around Your Hips

Weight loss, if unintentional, always needs investigation. See the doctor.

You Feel Sick a Lot of the Time

This may be for many reasons. Check you are not pregnant. Think about any medication you are taking. In fact, sometimes it’s anxiety—as people quite literally feel sick with worry. Sometimes, it has a more sinister cause.

Your Periods Stop for Three Months or More

...and you are not pregnant. This is called secondary amenorrhoea. It can happen for many reasons, and it can affect your long-term health—go and see the doctor.

You Bleed After Sex

This is called post-coital bleeding. This is always something that needs an urgent trip to the doctor. Chances are it will have an innocent —for example, a cervical ectropion, which is a spreading of cells. However, it can be a sign of cervical cancer. Like all serious illnesses, the sooner they are diagnosed, the better. Get this checked out. Don’t be one of the 8 million women who have not had their smear test! It really isn’t as bad as you think. Cervical smears save lives! Do something amazing for yourself, and book that test today.

You Keep Having Nose Bleeds

This is often just one of those things—however, recurrent nose bleeds can make you anemic. Sometimes nose bleeds—epistaxis—can be very difficult to control. Very rarely you can die from a nosebleed. A very heavy nosebleed can be a sign your blood isn’t clotting properly or even, for example, that you have leukemia.

Your Face is Abnormally Pale

Look in the mirror, put a finger just underneath your lower eyelid, and pull it down. If this conjunctival area is abnormally pale, it can be a sign of anemia. You may also have pale creases in the palms of your hands and a pale tongue. When anemic, you are often feeling tired all the time. See the doctor.

Your Skin is Slate Grey

This is characteristic of a condition called hemochromatosis, in which abnormal levels of iron are laid down in the body. It's a genetically inherited condition. It's very treatable.

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Your Friends and Family are Complaining You Have Bad Breath

Halitosis can be because you have gum disease, so it's very important to brush your teeth regularly, floss, and go for check-ups and see the hygienist. Some medical conditions can be associated with unpleasant breath such as diabetes, chronic cough, smoking, and acid-reflux. Do something about this today!

Are Your Feet, Ankles, Hands or Face Swelling?

This is called edema. It can be a sign of heart failure or other problems such as liver disease. Go and get help right away.

Tired All the Time?

There is a long list of causes. Stress, anxiety, depression, and poor sleeping are all on the list. However, serious diseases such as cancer, diabetes, and heart disease also cause extreme fatigue. Go and have a check-up.

Is Your Voice All Croaky?

This can be due to nodules on your vocal cords, smoking, thyroid disease, or even cancer. Have you had this assessed?

Are You Watching Your Moles?

Any changes must be reported. Remember your ABCDs:

• Asymmetry – is your mole asymmetrical?
• Border – does it have an irregular border?
• Color – is the color uniform?
• Diameter – is it more than 6mm in diameter?

If any of this is happening, go and show your doctor.

You’ve Noticed a Lump

...where you don’t usually have a lump. It might just be a fatty lump—a lipoma—but it could also be an enlarged lymph gland. If it’s a change from what you usually have, go and see the doctor. It could be lymphoma.

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Do You Get Panic Attacks?

These can be associated with chest tightness and a feeling of being unable to breathe. These symptoms also occur with angina, so this could be serious. Go and get this checked at the doctor.

You Bruise All Too Easily

This can mean clotting problems and may signify liver disease or bleeding disorders. Don’t leave it!

You Get a Metallic Taste in Your Mouth

This can happen for a variety of reasons—for example, in pregnancy or as a side effect of certain medicines such as antibiotics or medicines. Rarely, it can be due to more serious illnesses such as cancer.

You Start Getting Painful Joints

This can be one joint or several joints. Yes, osteoarthritis is the most common cause associated with aging, but other causes include gout, fibromyalgia, and rheumatoid arthritis. Gout—sorry to say this—is associated with excess alcohol. See your doc.

You Start Seeing Double

This is called diplopia. Go see your optician. Causes include dry eyes, problems with the cornea, cataracts, strokes, and even brain tumors.

You Notice Any Skin Changes on Your Breast

...like puckering or dimpling of the skin, even if you can’t feel a lump. It’s extremely important you see the doctor straight away. If you do have breast cancer, the earlier this is detected, the better the treatment outcome.

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You Have a Cough for More Than 3-4 Weeks

...which won't go away. Other important symptoms are shortness of breath and blood in the sputum. You must see the doctor right away.

If You Get Chest Pain on Exertion Which Goes Away When You Rest

This could be coronary artery disease—angina. It’s because your coronary arteries are furred up inside, and the blood supply to the heart is adequate at rest but can’t cope when you exercise. Don’t wait—see the doctor. The next step could be a heart attack. Angina is treatable.

Any Mild Abdominal Pain That Lasts More Than a Week

...or more severe pain lasting more than 24-48 hours—it's time to get help. Arrange to see your doctor. There are numerous causes, but you must get the right diagnosis and the right treatment. And if you enjoyed this article, don't miss 20 Incredible Ozempic Success Stories of All Time.

Dr. Deborah Lee is a medical writer at Dr Fox Online Pharmacy.

That afternoon slump hitting you again? Those mysterious hunger pangs striking at odd hours? These might not be what you think. "Most people miss the subtle ways their body signals dehydration," says Dr. Janine Bowring, ND, a naturopathic doctor, bestselling author, and mother of five. Her years of research have uncovered surprising signs that could transform how you think about your daily water intake.

The Aging Sign That Might Just Be Dehydration

"One of the most overlooked signs of dehydration shows up right on your face," Dr. Bowring reveals in her post. "Those new wrinkles and dry patches aren't necessarily aging – they're often crying out for hydration." While many rush to buy expensive creams, she points to a simpler solution: proper water intake. "A persistently dry mouth often accompanies these skin changes," she adds. "Together, they're your body's way of signaling severe dehydration."

The Common Pain That Water Could Solve

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Got a headache? Hold that pain reliever. "Before reaching for medication, try drinking a glass of water," Dr. Bowring suggests. "I recommend adding magnesium bisglycinate to your water. Most people are deficient in this essential mineral, and this combination can provide natural headache relief while addressing the underlying dehydration."

3. Why Your Hunger Might Actually Be Thirst

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"One of the most misunderstood signals is hunger," Dr. Bowring explains. "What many people interpret as hunger pangs are actually their body's cry for water." This revelation extends to energy levels too. "Fatigue and perceived hunger are classic signs of dehydration that most people misinterpret," she notes. "It's why increasing water intake is often the secret weapon in successful weight management programs."

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The Hidden Reason Behind Your Joint Pain

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Think that joint pain is just part of getting older? Think again. "Your joints and muscles are highly dependent on proper hydration," Dr. Bowring states. "Joint pain and muscle mass loss often directly link to insufficient water intake." She points out that this connection is well-known in athletic circles: "It's why bodybuilders and athletes prioritize hydration, especially when using protein supplements or creatine."

The Digestive Issues You Didn't Know Were Related

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"Many digestive problems have a surprising common denominator," Dr. Bowring shares. "Constipation, heartburn, and acid reflux often improve significantly with proper hydration." The solution, she suggests, might not require extensive dietary changes or medication – just more water. "Your digestive system requires adequate hydration to function properly," she explains. "Without it, these uncomfortable symptoms can persist."

The Social Impact You Never Expected

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Here's a sensitive topic: bad breath. "Chronic bad breath can be a sign of insufficient water intake," Dr. Bowring reveals. But the implications go beyond social situations. "Your immune system's strength is directly linked to your hydration levels," she explains. "It's why doctors consistently emphasize fluid intake during illness – proper hydration is crucial for immune function."

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The Weight Loss Secret Hiding in Plain Sight

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"Research has revealed something remarkable about water and weight loss," Dr. Bowring shares. "Simply increasing water intake to two liters daily can significantly impact weight management." The science backs this up: "Studies show proper hydration can boost energy expenditure by approximately 400 kilojoules," she notes. This surprising connection between hydration and metabolism might be the missing piece in many weight management efforts. And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.