I think you should have the endoscopy, that might solve the problem. My sister and also my brother-in-law had the type of pain you are describing. During the endoscopy they do a snip for a biopsy testing for the H-Pylori bacteria. My brother-in-law, it turned out, had an ulcer the size of a small crater, and my sister also tested positive. A short duration of antibiotic therapy cleared both up. The brother-in-law, however, is going to have to take Protonix for life, to keep it under control. Best of luck to you - since the endoscopy is being considered, I hope it gives you some results.