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Are you worried you might have chlamydia? Find out how this common sexually transmitted infection is diagnosed and treated.
Cyclic vomiting syndrome can last for hours or days and shares many triggers with migraines.
Food allergy symptoms can make you miserable. Unfortunately, there's no cure — but there are steps you can take to keep your symptoms in check.
Food poisoning has many forms, and some can be serious. Here's how to recognize food poisoning and ways to prevent getting sick.
Intestinal gas can be embarrassing and sometimes painful. But a few simple measures can often provide relief.
Porphyria is a group of inherited disorders that result from buildup of natural chemicals call porphyrins, which can cause nervous system and skin problems.
Salmonella infection will cause only diarrhea and stomach pain in some people, but for infants and immunocompromised people, this bacterial illness can cause life-threatening complications.
Foot pain? Headache? Sore throat? Skin rash? Use the Symptom Checker to find out what's causing your symptom.
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