I'm having trouble with "he lets me take meds, but he hates it."

There probably wasn't anything in your marriage vows about him owning you outright. He has a problem. It sounds like he is supportive as long as it is on his own terms. That's selfish and narcissistic.

I can't possibly know more about your situation than what you have posted here, but I think you really have to take a stand. Let him know your feelings. All of them. Tell him that if he can't get on board and start helping you instead of trying to control you then then you will have to leave. The fact that you haven't left means you still have hope of getting it straightened out. I hope you can.

Just my $0.02.