This may sound weird, but you're in a good place right now. You know the saying "it's always darkest before the dawn", well that's where you're at. I've experienced it myself, it's just your brain digging in for one last attempt at keeping you focused on your level of pain. The fear of exercise thing is just another distraction, so try to ignore it.
It's OK to feel the way you do, angry, afraid and frustrated; ask yourself who wouldn't. Never berate yourself for being human. In most cases, TMS healing takes a considerable amount of time, over 3 years in my case, so it's very easy to become frustrated. This in turn creates tension (rage), which is what you want to avoid. The pain will leave when it ceases to become important, lose the fear, lose the pain it's that simple, but difficult to do because you're working on breaking an unconscious habit.
In my case it was trauma that started my symptoms, but everyday stressors and fear of the pain itself which kept it going.
I would try to practice self compassion, don't beat yourself up for not being "cured" yet. Also have you tried identifying when you are conditioned to have pain and working on that, because if you've deeply explored your true feelings around traumatic events you are probably just getting pain when you expect to have it or go looking for it.
One thing I used to do was have a really good day, then a bad one because I was putting myself under pressure to repeat it !
I'm still not 100% pain free 100% of the time, but I'm fear free and live my life excactly as I want to, so I consider myself healed. I had what I thought was a major relapse a little while ago, but got it under control in a couple of weeks. I'd had some bad news, so my brain had tried to revert to it's old tactics.
Persistance is the key, just stick at it and you will continue to heal I promise.
Bless you
