Indigestion
Indigestion, also known as upset stomach or dyspepsia, is discomfort or a burning feeling in the upper abdomen. It is often accompanied by nausea, abdominal bloating, belching, and sometimes vomiting. Revised and updated 2009.
Topics: Dyspepsia, pain in upper abdomen or chest, Fact Sheet, Gas, Bloating, Belching, Heartburn