I love every chance to try and help someone out in this situation.
Amigo is right. Exercise does help so much. Find something you love (something you can manage even when you don't want to leave the house!) and keep it simple. Focus on relaxing and having a good time. That part is important. If you attack exercise like it is a chore; it doesn't 'work' as well.
Exercise is also a good time to get some socializing in while at your best and relaxed.
Find a new doctor!! A good doc will take the time to listen to you and to help you find the best treatment for you overall. Drug pushing is not good. I'm sure you know that already. If you have troubles mustering up enough energy to do it: chunk up your time. Enlist your wife or a friend's help to write out all your concerns and what has been happening with you. Walk into the doc's office fully prepared; and bring someone if you find yourself not able to speak up at the crucial time. Research doctors and choose one that you are comfortable with: this guy/girl is important!
Diet is another area that can help. I recommend it even if you stay on your meds.
Ok. That's a long enough post for now.

Hang in there.