Gastroparesis is a long-term complication of diabetes that involves the stomach and affects digestion. Prolonged high blood sugar levels can damage nerves in many parts of the body, including the vagus nerve, which controls contractions of the stomach during digestion.
Spasms, abdominal pain, feelings of fullness after a small amount of food, and other symptoms such as nausea and vomiting, reflux, heartburn, and bloating are often experienced with gastroparesis.
Loss of appetite and reduced absorption of nutrients may also be experienced. Gastroparesis can lead to weight loss and malnutrition.