--have you taken a long look at the Gluten Sensitivity/Celiac forum here yet?

http://neurotalk.psychcentral.com/forum13.html

There is a lot of info--much of it compiled originally by jcclglutenfree (cara--creator of The Gluten File, probably the most comprehensive database on the subject yet devised) that talks about non-celiac gluten sensitivity, the relationship of "tight junction dysfunction" mediated through the intestinal substance Zonulin in allowing inappropriate molecules to pass from the intestinal tract into the body, resulting in molecular mimicry autoimmune reactions, and the many different malabsorptions of vitamns and minerals that can ocur when there is intestinal damage . . .

Deficiencies of B12, B6, magnesium, iron, calcium and the like can cause neurological symptoms of their own accord, and the autoimmune cross reactivity of gliadin with nerve glycolipids can result in neurological problems (neuropathy, ataxia) in its own right . . .

And--there's info about dermatitis hepatiformis, a red, scaly, blistery rash that is associated with gluten sensitivity . . .