obviously theres a group of CFS'ERS AND ME/CFS'ERS that didn't get ill from viruses but instead became seceptable to them and re-activation of them and some were made ill by chemical exposures, now MCS and the sinus,olfactory,brain pathway, I think shows a whole other impact to the brain besides the stomach/bowel route. GWI has been reconized as TBI/PTSD, YET THERES STILL SO LITTLE POINTING TO THE SEVERITY OF BRAIN DAMAGE that turned my world upside down when I too fit into this box , I cant tell when my brain is affected by either route and no not all ME/CFS'ERS have the sinus/brain involvement witch is looking to not only be related to chronic rhinosinusitis but very possably severe Fibromyalgia.  I know we are getting there but gee, kind of would like to see it happen before I croak! obviously there are some in the know out there yet it seems limited to GWI research, very thankful for that but hey some of us are not GWV'S yet suffer from the same cause "chemical exposure" there's a few new articles out on MCS , one that addresses the hearing dysfunctions, can we get more articles out there that point to chemical exposures  and the tipping point (what I call it) where mast cells may suppress the immune system when they cant keep up and this allows  mucosal and tissue damage and infection to acure and not only play a role in autoimmunity but probably also the B cell switching to IgE. I can relate to both GWI and Autism ,have tried to keep up with research on both.