Gastroparesis is a condition where the food remains in a person's stomach for an abnormally long time. It happens when the muscles of the stomach and intestine, do not function properly and the vagus nerve is damaged. Chronic nausea, vomiting, abdominal pain, heartburn, palpitations, weight loss, feeling of fullness, etc. are the most commonly seen symptoms in a person suffering from this condition. It can be diagnosed by X-rays, manometry and gastric emptying scans. It can be treated by changing the diet of the affected person, like low-fiber, low-fat diet, having smaller portions of meals.