Hello there. Your history is inconclusive if I can use this word. A lot of questions need to be answered before I can tell you a exact or a near exact diagnosis. Take a ranitidine and domperidone combination tablet before atleast half an hour of food. Avoid oily and spicy foods. Don't eat anything atleast 3 hours before food. Avoid smoking, alcohol etc. If it still persists, then don't delay and consult a general surgeon in person and discuss your case with him because after examining you in detail he will be able to help you out better. Regards