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Flu symptoms: Should I see my doctor?
See a healthcare professional if you are at high risk for complications from flu.
COVID-19 vs. flu: Similarities and differences
Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.
Heart attack symptoms: Know what's a medical emergency
Watch for these heart attack symptoms.
Headache
Headache: Symptom — Overview covers definition, possible causes of this painful symptom.
Coma
Learn what can cause this state of prolonged loss of consciousness. While a coma rarely lasts longer than a few weeks, some people never wake from one.
Wisdom tooth removal
If you don't have enough room in your mouth for wisdom teeth, or they're painful, infected or cause other dental problems, they may need to be removed.
Heavy menstrual bleeding
Learn about the causes and treatment of heavy menstrual periods.
Diarrhea
Learn more about what causes this common, unpleasant digestive condition, and how you can treat and prevent it.
COVID-19, cold, allergies and the flu: What are the differences?
Knowing if you have COVID-19, a cold, the flu or seasonal allergies isn't easy. Find out about the differences between these illnesses.
Pituitary tumors
Learn more about the symptoms, causes and treatment of growths that develop in the pituitary gland.
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