I don't mean to be personal, but I know you said you had a ton of tests, but did they do a colonoscopy and endoscopy? Your pain sounds so similair to mine, and i really thought it was IBS, so did the doctors, then I had stomach bleeding...don't mean to scare you, just wished I had pushed sooner on with all my GI issues in hindsight...well they checked everything out, and it turned out I have severe acid reflux disease that did a ton of damage. I will need to be on medication for the rest of my life to hopefully prevent esophageal cancer. Now mind you, I NEVER EVER HAD HEARTBURN. Only during the end of my pregnancies. Funny thing is that now that I am on my meds I hardly have any tummy troubles, except when I don't correctly for more than a couple of days. Beleive me, the doctor was as surprised as I was to find that I never get heartburn, and that I had no pain, let alone that I was even able to swallow food. My esophagus was terribly eroded and it caused some permanent cellular changes to it, which are benign now, and hopefully will remain that way. I am glad I know now, I am glad I feel better, my only regret is that I was not more proactive in this, when I could clearly feel something was wrong even though it was dismissed. Had I been I may have prevented some of this damage. Hope this helps you out. Feel better.