Entitled: "Indigestion" A man wearing robe and slippers is sitting between fireplace and bed, his left elbow resting on small table; he is beset by tiny blue demons taunting and tormenting him. Etching by George Cruikshank, 1825. Dyspepsia, also known as indigestion, is a condition of impaired digestion. It is a medical condition characterized by chronic or recurrent pain in the upper abdomen, upper abdominal fullness and feeling full earlier than expected when eating. It can be accompanied by bloating, belching, nausea, or heartburn. Dyspepsia is a common problem and is frequently caused by gastroesophageal reflux disease (GERD) or gastritis.