I am 19 years old, and have terrible pain in my stomach frequently accompanied by loose motion. The stool is watery with pale colour. It does not occur at all times but after an interval of a day or so. Also have loss of appetite. The symptoms increases after having a meal especially after breakfast. feeling of fullest alsooccurs sometimes. I take omeprazole capsule and lomofen which relieves it for few hours or a day but again it persists. Do suggest me what is tge cause and what should I do.