kimb
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Where exactly in your stomach is the pain?  if the endoscope was negative and they didn't actually "see" anything or all biopsy's were negative I have NO idea what it could be!  Those are the most conclusive tests there are.  MUCH better than the other x-ray and scan type testing.    What does the pain feel like?  Burning? Cramping? stabbing?   I used to describe by ulcer as a charlie horse on fire in my stomach.   I also have endometriosis...the early years of pain felt like I was pregnant with a porcupine.  Are you male or female?  Are you sure it is your "stomach" that that the pain is coming from?  Sometimes pain can defer from other areas.      I hope you find some answers soon!!