Some common problems include heartburn, cancer, irritable bowel syndrome, and lactose intolerance. Other digestive diseases include: Gallstones, cholecystitis, and cholangitis. Rectal problems, such as anal fissure, hemorrhoids, proctitis, and rectal prolapse
he most common symptoms of digestive disorders include bleeding, bloating, constipation, diarrhea, heartburn, pain, nausea and vomiting.