My MIL was, after her death in her 70s, diagnosed as having had MND. Previously, it had been thought that maybe she was suffering the return of polio that she had as a child. (The Dr then said there was a treatment, but that her mother wouldn't be able to do it. Her mother assured him she would. The treatment was to carry the child everywhere, all day. The mother did this, and my MIL recovered). Also in her history she had Rheumatic Fever once. I asked DH whether she'd had chicken pox or shingles, and he thought she had. And he says she was forever getting shocks.
I think she had sustained a profound shock in the period after her husband died. I read the influence of shock on the immune system once. Forget how it goes, now. A physical effect. Rowna

