there's not much more I can do. I don't have any medical or chemical background ... but I have had an interest and also noticed that there is a similar look to health issues of EVOS workers to that of gulf war syndrome vets and also to Vietnam vets ... WWII ... WWI  and then civilians with CFIDS, etc I probably won't reply too much more on MedHelp as I've given basic info that can be checked into, and people soon will tire of my mentioning this exposure as causing their ailments (odd and many assorted, seemingly unrelated ailments)  Look up American Legion gulf war syndrome symptoms