Hi Wildcat,
I read your post through a couple of times and I understand your fear. Understand that your husband is only able to do so much for your problem. He can really only see what affects him, he cannot know your fears because he doesn't have them. He is also loves you very much and can only view you through love. That makes it hard to be truly objective. From what you wrote he does try to be objective and offered what he could at the time you asked. Give him time to ponder your questions and be open to listening when he has had some time to think about the subject more deeply. He will still be considering your questions after your conversation.
As for saving you, that is not really in his power. I'd like my husband to save me from myself but that is selfish, it lays all the responsibility at his feet and not really fair. This is why your husband wants you to continue with your medication and seeing your doctors, it's another way for you to be helped with the things he is unable to do for you. I like to think of my husband as superman, he's an intelligent, wonderful, and handsome man. But, he does have his limitations and even with all that going for him, he's not perfect and has his own thoughts and fears to deal with. I've realized lately that I've expected him to carry too much of a burden where my issues are concerned. He can't really take it away, but he can be a sounding board and gives me feedback that I can use to help with my thought processes. The things I cannot control, like the future, I will leave to God to deal with. (At least I try to.)
You are very in touch with how you feel, and if you began to really have problems your husband, you or your doctor would pick up on it. Just stay focused on the problems you face now and let the future care for itself.
Good luck Wildcat, please hang in there! From what you have written it's obvious that you are a kind and caring person. I've read some of your other blogs and you write such hopeful things and have made me smile many times. Thank you!
Mom of 3
I want to sleep in and you are on fire the moment the sun peeps over the horizon. I do not want to wait 2 hours at a store's door for it to open Saturday morning... If it were up to me i would saunter in at 4:45 and make the employees wait to close when I finish shopping at 5:30! At least once every two months "le feu poinge" and you race off pushing everyone. 
