Just wanted to included a positive note and share some great progress:
My daughter is 34... Beginning in high school she became troubled somewhat by IBS and it continued in a "mild" (it is relative) form until 2006 or so. At that point she became miserable, soon lost her job and socially unsecure.
We tried all of the gastroenterologists in two major hospital groups, endocrinologists and local medical schools. Allergy testing, scoping, swallowing cameras, bacteria tests, enzyme tests, testing to all susceptibilities - including gluten. We tried eliminating fat and many other items too.
But through all of this the doctors told her that she didn't have an issue with dairy or gluten. Her suffering continued...
Six weeks ago, her mother finally suggested that she give up gluten and dairy at the same time.
What a difference that has made! She can actually sit at the table and finish a meal without running... her outlook is positive again.
So, I wanted just to share this encouragement and say that sometimes, doctors don't have all of the answers, and it may be a good idea just to listen to your Mom.