These same steps may give you relief if you are already constipated:Drink plenty of fluids, especially water and prune juice.Eat foods high in fiber, such as cereals, whole grains, fruits, and vegetables.Exercise.Take stool softeners or a laxative as prescribed.Don???t take over-the-counter enemas without first checking with your doctor.DiarrheaDiarrhea, which is loose or frequent bowel movements,