That's possible, too, and those same types of neurological problems can also be seen in gluten sensitivity.
Also, what is IBS? It is a dx of exclusion....when there is no other explanaton for the symptoms.
http://emedicine.medscape.com/article/180389-overview
I know that people with Fibromyagia also have an increased prevalence of IBS.... and I guess that might be due to both neurological and/or food sensitivity issues, too.
http://jccglutenfree.googlepages.com...atiguesyndrome