The medical name for painful or difficult digestion is dyspepsia or indigestion, according to WebMD. Its main symptom is discomfort or pain in the upper abdominal region. Indigestion is usually a symptom of digestive disorders, such as GERD, or gastroesophageal reflux disease, gallbladder disease, and ulcers.
In addition to abdominal pain, frequent signs of indigestion include bloating, belching, a burning sensation in the stomach or upper abdomen, nausea, vomiting, and a growling stomach, states WebMD. Indigestion is frequently associated with heartburn, and its symptoms are worsened by stress. Treatment includes lifestyle changes, such as quitting smoking, avoiding spicy foods and alcohol, avoiding eating late, chewing the food with the mouth closed, and avoiding drinking fluids during the meal.