Oh hun, I am so sorry u are having to deal with so much!!!!! *hugs* I wish I had something to offer you, but all I have is my encouragement to u to cont fighting for pain relief and ways to search for ways to help improve ur disease. Hang in here hun!!
I have Kyphosis myself but mine is not 80 degrees, I've never seen Kyphosis that bad before. I would mention to your doctor about how much pain the brace is causing and see if there is something he/she can do to help relieve the pain.