Hi, systemd98!
So sorry to hear that you have such problems.
It can be so beneficial at times and at other times be potentially destructive. I have done PT generally directly after surgery or after a flare up. But I limit the time I will spend with them.
The initial sessions are generally not aggressive enough to hurt anyone. But as sessions continue (could be 2,3, or 4 weeks), they tend to move to more aggressive actions. You should talk to your doctor first to know his/her opinion. PT can mess you up. Most of the time under most situations, it is helpful. But the dividing line needs to be with yourself.
Stay healthy!