Indigestion (dyspepsia) is a general term covering a group of nonspecific symptoms such as a feeling of fullness, bloating, nausea, heartburn, or gassy discomfort in the chest or abdomen. The symptoms develop during a meals or shortly afterward. It may be triggered by eating particular foods, or drinking alcoholic or carbonated drinks. It may also be a cause of overeating or eating too fast. Some people may find that spicy foods, high-fiber foods, fatty foods, or too much caffeine can all make this problem worse. In most cases, indigestion is a minor problem that often clears up without professional treatment.
Burping is the act of expelling gas from the stomach through the mouth. The usual cause of belching is a distended (inflated) stomach caused by swallowed air. The distension of the stomach causes abdominal discomfort, and the belching expels the air and relieves the discomfort. The common reasons for swallowing large amounts of air (aerophagia) are gulping food or drink too rapidly, anxiety, and carbonated beverages.