Soundy ~
I'm so sorry to learn about your dad's medical emergency - several medical emergencies, actually. I have to agree that he is 'a tough old bird' (I know a guy like that, he looks back at me in my mirror every morning). Obviously, this unhappy state of affairs is severely stressful for you and that is apparent in your post. You have so many physical challenges to deal with and now, this emotional one with your father is definitely daunting. I don't know how old your dad is but I long ago (grudgingly) accepted the reality that our bodies are not meant to last indefinitely and that at some point, they'll just wear out, either from old age, illness - or often, both. Your troubled history with your dad is also dismaying but at least you were able to reconcile and now have something better. I will definitely keep both you and your dad in my prayers. He, for healing and you, for strength, both physical and emotional.
Jim