Gastroesophageal reflux disease (gerd) occurs when stomach acid frequently flows back into the tube connecting your mouth and stomach (esophagus) this backwash (acid reflux) can irritate the lining of your esophagus many people experience acid reflux from time to time. Gastroesophageal reflux disease heart attack. The "textbook" heart attack involves sudden, crushing chest pain and difficulty breathing, often brought on by exertion many heart attacks don't happen that way, though the signs and symptoms of a heart attack vary greatly from person to person heartburn itself can accompany other symptoms of heart attack.
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