So sorry to hear about your troubles, Joe. Sounds like the new DR is encouraging about his treatment plan. As a nurse, do what you can as you can and no more. too much work of those hurt muscles will damage the muscle. rest as much as you can however you can. If you need to sit up to rest , do it. Lie down? do it. listening to calming music or shows that make you laugh will relieve stress to help your healing.
Elaine, you are in my prayers also. Get well, and don't over work yourself while Joe is down.