I was told my illness would be caused by Coxsackie B when I was diagnosed in 1986, but I also had polio back in 1955 and I wondered if that would have made me immune to another chronic infection of the same family. No doubt @Hip would know.
I had the Asian Flu back in the late 1950s(very severe)...Professor Gottfries mentions that in youtube videos....4 parts... may have something to do with my illness.
I have had B12 issues(lifelong)/but not recognised till late....The enterovirus I have mentioned.Then there was the malathion contact(resulting from my work as an agricultural science teacher/Zambia/1960s/70s....)....and Hypopituitarism(PTHP) from an assault on me one punch ko'd(never saw attacker but know who it is now)/then attacked again and left unconscious for second time on coming around, after first attack(plus kicking in same incident)/1974.Later I had Ativan(lorazepam) addiction/part of my psychiatric treatment.That nearly killed me!(1982)
It was only in 2014 that I had my PTHP(brain injury) officially diagnosed/confirmed after I diagnosed it myself.I had to do the same with parathyroid disease back in 2005/6.(had tumour removed).ME/CFS patients are seen as mental cases and mainly abandoned but that is crazy/unjust.Psychiatric treatment and ECTs are not the answer...Vitamins/minerals are much safer and more useful plus keeping to a good diet(based on individual needs).Certain drugs could be of use too especially inflammatory ones(for brain/gut).
I was turned down for DLA although Dr Myhill drafted a letter for me.I wasn't able to bring up the organophosphate contact or PTHP diagnosis at that time(around 2006(?)