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Unusual COVID-19 symptoms: What are they?
Find out about the unusual symptoms of coronavirus disease 2019 (COVID-19), including COVID toes, nausea, and loss of smell or taste.
Peripheral neuropathy
Learn what may cause the prickling, tingling or numb sensations of nerve damage and how to prevent and treat this painful disorder.
Migraines and gastrointestinal problems: Is there a link?
Migraines can be associated with certain gastrointestinal problems. Learn more.
Low potassium (hypokalemia)
Low potassium (hypokalemia): Symptom — Overview covers what can cause this blood test result.
Heartburn or heart attack: When to worry
Chest pain? Learn the potentially lifesaving difference between heartburn and a heart attack.
Food allergy vs. food intolerance: What's the difference?
Might you have to swear off milkshakes for good? Follow the symptom clues to find out whether you possibly have a food allergy or a food intolerance.
Diarrhea
Learn more about what causes this common, unpleasant digestive condition, and how you can treat and prevent it.
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