Dyspepsia, also known as indigestion or an upset stomach, is a common digestive disorder characterized by pain and discomfort in the upper abdomen. Symptoms of DYSPEPSIA can include bloating, nausea, heartburn, and a feeling of fullness after eating. It is often caused by eating too much or too quickly, eating certain foods, or drinking too much alcohol. Treatment for DYSPEPSIA typically involves lifestyle changes, such as avoiding certain foods and drinks, and taking over-the-counter medications to reduce symptoms.