I'm sorry you've been having this pain so long. This summer, I went for Physical Therapy for a few weeks. Best thing that has happened in a long while. I finally got someone who did a fairly extensive workup on me. After one session with this guy, I could stand fairly straight for the first time in years. When I started having a different pain, he re-assessed and fixed it.

IDK what kind of access you have to physiotherapy; maybe your friends can help with that.

I hope you can find relief.