Susan, you might be interested in Dr. Gabor Mate's book "When The Body Says No". He doesn't talk about Dr. Sarno and he never uses the term TMS. What he does do is to describe, in scientific and medical terms, the physiological changes that occur in the body as a result of the stress of repressed emotions. Dr. Mate clearly believes that most, if not all, of the auto-immune conditions result from this stress. He even includes MS and ALS - that's pretty radical, but he makes a very strong case for both of them.
At some point you have to ask yourself the question: what harm is there in assuming that your condition is TMS? I'm also speaking to your daughter, of course.
If the condition s not currently life-threatening, and if there is no effective treatment other than palliative, which tends to be the case with many AI conditions, then practicing the self-examination techniques recommended by Dr. Sarno (and many others) absolutely can't hurt, and will probably help, if nothing else, the anxiety and the heightened sensitivity brought on by anxiety, and bring back a sense of control over the situation. And everyone knows that stress reduction is one of the recommended "treatments" for AI conditions, since they still don't really know what causes them (which is why they are probably all TMS - or whatever you want to call it, re Dr. Mate)
To give a very simplistic example of the value of general TMS knowledge: if you break your leg, and if you understand TMS theory, your experience of the pain and your expectation of the prognosis will be very different than that of someone who knows nothing about the mind-body connection - and your healing may be easier and more complete. I really really REALLY believe this. TMS theory applies to the way we live our lives every single day, not just to specific conditions that may or may not be on Dr. Sarno's list.
What I'm saying is that everyone can benefit from learning about the mind-body connection. It's never too late, and your daughter is young. Get her started yesterday.
Jan
(self-diagnosed at age 60 - never saw a TMS doctor - just lots of practitioners who "couldn't find anything wrong". Discovering Dr. Sarno and TMS theory explained a lifetime of symptoms)