Oh, bg! Your H sounds so familiar! Mine has also been sick PERPETUALLY since he left. Everything from gall stones to the flu. And he's also an emotional wreck when I see him.
Honestly, I think they are working their way through whatever it is. They clearly know the problem is inside, but can't/won't do anything about it (probably don't even know how to begin to get help).
It's painful to watch, isn't it?
Me: 39 H: 45 Second marriage for both H left 12/2013 M:4 T:5.5