Hi Colleen ~ Hello from another Michigander! As I write this, it's actually 46 degrees here!!! A veritable heat wave!!!
Colleen, I haven't experienced what you have, but I must say that it would seem to me that he's just using your condition as an excuse. I would look long and hard at his "extra curricular activities." I cannot believe that after 34 years, he would use your disability as an excuse for a divorce.

And I also cannot believe that ANY decent lawyer would even take his case, altho I know you can get a divorce easily in this state.
I divorced my husband after 26 years of marriage due to abuse -- If I had said it was because he had "changed" due to some disability, my attorney would have thrown me out of his office!

I can BET on that.
So just a little hint -- you might better look for some clues - he's probably got some cute young thing on the side. I'd bet on THAT too. God bless and take care. Hugs, Lee