Second trimester
Learning Center
Heartburn or heart attack: When to worry
Chest pain? Learn the potentially lifesaving difference between heartburn and a heart attack.
Heart palpitations
Know when and how feelings of a rapid, fluttering or pounding heartbeat are treated.
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.
Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
GERD: Can certain medications make it worse?
Certain medicines can make symptoms of gastroesophageal reflux disease (GERD) worse. Learn more.
Fundal height: An accurate sign of fetal growth?
Understand how fundal height is measured and what it means.
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.
Flu symptoms: Should I see my doctor?
See a healthcare professional if you are at high risk for complications from flu.
Fetal development: The 2nd trimester
Fetal development progresses rapidly in the second trimester. Check out the weekly changes.
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