Hi Rose,
So much of your life sounds like my own with the great amount of weight gain due to the antipsychotics, and dealing with psychosis and ptsd. Like you, I have past and current injuries that are causing problems in my life.
Also like you, every day is a challenge for me, but your post offers me support knowing that you are moving forward with physical therapy and striving to make positive changes in your life. What I have done is that I now refuse to take any ap that makes me gain weight, and after many trials I am taking geodon. I have managed to lose 25 lbs. of the original 70 lbs. I have gained over time. I fell last week at work, and injured my knee again, so I have stopped walking for now, but this had been the exercise I was doing.
Thanks to the awful drugs we are prescribed, I know there are others like you and me on here. I don't have a lot of advice for success, but I will be around for moral support whenever you need encouragement. Keep us updated, and good luck with the pt!
Bluemountains