Ok, well that's great they are on top of the testing. One thing is that you can have gluten sensitivity and not celiacs, I'm sure you would have other symptoms that accompany this, same symptoms of celiac. Also while the small intestinal biopsy was the gold standard, they are moving towards gene testing because the biopsies are not 100%. For me I've had many tests for celiacs and my dr's are still convinced I have it regardless of the negative tests, there are false negatives. But I do think you'd have symptoms.

Geodon is an antipsychotic right? While I have never been on that one, antipsychotics can cause metabolic disturbances, it's pretty common. Usually I think it leans in the other direction, but who knows.. I'd definitely check that out.

I hope you find the source!