My son who is 21 years old has a history of fatty liver disease, had his gall bladder removed at 14 and has a moderate sized hiatal hernia. Diahrrea bloating and vomiting have always been an issue for him but for the last year he has these severe symptom 2 to 3 times a week. He has constant heartburn. Doctors keep telling him it is gastro enteritis but he has had these symptoms for a year straight. He knows he has stomach cancer or esophageal cancer. I am not sure where to go from here.