Understand Your Symptoms

Headaches are one of the most common symptoms people experience. Most are harmless and short-lived, but the pattern, location and triggers can help tell different types apart.

Fatigue is a feeling of persistent tiredness or lack of energy. It is common and often linked to sleep, stress or lifestyle, but ongoing fatigue can have many causes worth exploring.

Dizziness can describe lightheadedness, unsteadiness or a spinning sensation. It has many possible causes, most of which are not serious, but some need prompt attention.

Nausea is an uncomfortable feeling in the stomach that may come before vomiting. It has many causes, from simple to more serious.

A cough is a reflex that helps clear the airways. Most coughs are short-lived, but a cough lasting weeks or producing certain symptoms should be assessed.

A fever is a higher-than-normal body temperature, usually a sign that the body is responding to infection. Most fevers are not dangerous, but some situations need prompt care.

Back pain is very common and often improves within weeks. Most cases are not serious, though some need investigation.

Stomach pain can range from mild and brief to severe. The location, type and pattern of pain help point to possible causes.

Chest discomfort can have many causes, from muscle strain to digestive issues. Because some causes are serious, new or unexplained chest discomfort should be taken seriously.

Joint pain can affect one or many joints and may come and go. It is often linked to activity, age or inflammation.

Feeling short of breath can be alarming. It can be normal during exertion, but breathlessness at rest or that comes on suddenly should be assessed.

A rash is a change in the skin's appearance. Most rashes are mild and short-lived, but some need attention, especially if they spread quickly.