The g.i. tract is a very complicated system and I think a big part of the problem is there is just a lot the doctors don't know yet. For example right now one of the big areas of research is the gut microbiome. It is not like a broken bone or something definitive. On the other hand, I also had the experience of a doctor who just wanted to do upper endoscopies and colonoscopies over and over, etc., and didn't say IBS or anything or didn't do any breath tests or anything. I had to go up to Mayo to get the fm diagnosis.