Constipation may be related to low fiber intake, inadequate fluid intake, certain medications, or reduced physical activity. Persistent diarrhea can result from infections, food intolerances, inflammatory bowel disease, or other digestive conditions.
Irritable bowel syndrome can cause recurring abdominal pain, bloating, constipation, diarrhea, or alternating bowel patterns. However, these symptoms can overlap with other conditions, so a diagnosis should not be assumed without appropriate assessment.
Warning signs
Contact a healthcare professional if you notice:
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Blood in your stool or black, tar-like stools.
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Persistent abdominal pain.
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Recurrent diarrhea or constipation that does not improve.
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Unexplained weight loss.
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Symptoms that regularly wake you from sleep.
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A persistent change in bowel habits, particularly if it is new or unusual for you.
Severe abdominal pain, substantial rectal bleeding, fainting, or black stools accompanied by weakness or dizziness require urgent medical assessment.
Helpful habits
Gradually increase dietary fiber, drink adequate fluids, and remain physically active when appropriate. Keep a record of meals and symptoms if certain foods seem to trigger problems.
If persistent bloating is accompanied by other symptoms, avoid automatically eliminating entire food groups. A clinician or registered dietitian can help determine whether a specific dietary approach is suitable.
15. Frequent Headaches or Changes in Headache Patterns
Headaches may develop because of tension, dehydration, lack of sleep, migraine, sinus-related symptoms, or medication overuse. Most headaches are not caused by dangerous conditions, but a new or substantially different headache deserves attention.
What to notice
Record when the headache begins, how long it lasts, where the pain occurs, and whether it is accompanied by nausea, sensitivity to light, visual disturbances, or other symptoms.
Frequent headaches can sometimes be linked to poor sleep, irregular meals, stress, vision problems, or taking pain medication too often.
A headache diary may help identify patterns and provide useful information during a medical appointment.
When to seek help
Seek emergency medical attention for a sudden, extremely severe headache that reaches maximum intensity within seconds or minutes, especially if it is unlike any previous headache.
Urgent assessment is also important when a headache occurs with new weakness, difficulty speaking, confusion, loss of vision, fever with a stiff neck, or following a significant head injury.
A new or progressively worsening headache should be assessed promptly, particularly during pregnancy or after childbirth, in people with cancer or weakened immunity, or when accompanied by other unusual symptoms.
Do not assume that every persistent headache is caused by stress. A proper evaluation can help determine whether further testing or preventive treatment is appropriate.
16. Frequent Urination or Changes in Urine
Urination varies with fluid intake, caffeine, alcohol, medications, and temperature. However, persistent changes may sometimes provide clues about a health problem.
Frequent urination can occur with urinary tract infections, diabetes, an overactive bladder, pregnancy, or certain medications. In men, prostate enlargement may also contribute to urinary symptoms.
Symptoms worth noticing
Pay attention to:
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Burning or pain during urination.
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Blood in the urine.
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A persistent feeling of urgency.
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Difficulty starting urination or an unusually weak stream.
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Increased urination accompanied by excessive thirst.
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Urinating frequently at night without an obvious explanation.
Excessive thirst and frequent urination together can be symptoms of high blood glucose, particularly when accompanied by fatigue, blurred vision, or unexplained weight loss.
What to do
Maintain normal hydration rather than deliberately drinking excessive amounts of water or severely restricting fluids. Note whether caffeine, alcohol, or a new medication appears to affect your symptoms.
Blood in the urine should be medically evaluated even if it occurs only once. Painful urination accompanied by fever, back or side pain, or vomiting also warrants prompt assessment.
If you cannot urinate despite feeling that your bladder is full, seek urgent medical care.
17. Persistent Numbness, Tingling, or Weakness
A limb that briefly tingles after sitting in an awkward position often returns to normal when pressure is removed. Persistent or recurrent numbness, tingling, or weakness is different.
These symptoms may result from nerve compression, diabetes-related nerve damage, vitamin deficiencies, medication effects, or other neurological conditions.
What patterns matter?
Tingling in the hands may be associated with nerve compression at the wrist or neck. Symptoms in the feet can occur with diabetes or other peripheral nerve conditions. The location, duration, and progression of symptoms help determine the likely cause.
Numbness accompanied by burning pain, balance difficulties, or reduced sensation in the feet can increase the risk of unnoticed injuries.
When to seek urgent care
Sudden numbness or weakness affecting one side of the body, facial drooping, difficulty speaking, sudden loss of balance, or sudden visual changes may indicate a stroke. Call emergency services immediately rather than waiting to see whether symptoms improve.