 [ Symptoms ] i have attacks of severe upper abdominal pain that feels like pancreatitis the doctors do not know what is wrong [ Disease ] first you need blood transfusion asap is your rectal blood bright or dark is your vomit blood bright or dark stop any nsaids anti inflammatory  stop smoking use maalox and ranitidineother more effective drugs can be prescribed like proton pump inhibitors but not online you need to check your liver functions asapgood luck