I have bowel movements all day long after sipping a drink even water and after eating something this has been going on for years. what could it be. ?

Been checked?: Depends on age and any other symptoms. Could be irritable bowel , celiac sprue, lactose, fructose, sorbitol intolerance, parasites, inflammatory bowel disease, microscopic colitis, pancreatic insufficiency, cystic fibrosis, carcinoid tumors, overactive thyroid, excess magnesium or other supplements, or other. See your doc, get checked;.