Eventually I came to the conclusion that chronic pain isn't curable. It's our nerves rewiring themselves to constantly send pain, even when no problem exists.
This also gave me peace though. Until I tried everything, I thought my body was breaking down. I'm a very physically active person, who has tried to be proactively healthy their whole life.
Knowing the pain isn't organ or muscle related, but is just fucked up nerves, is consolation. It's not preventing me from doing anything. I still have full range of motion and mobility, it just hurts, but it can't stop me from doing the things I want to do.
So I continue to be active. I have a very high pain tolerance as a result, but I can cope with the pain better than years ago. Last year I hiked the whole 2,600+ miles Pacific Crest Trail despite the pain. Strangely enough, my pain actually mostly disappeared on the trail, but returned after I got home. I think the sudden change of daily habits and sleep conditions may have thrown my nervous system in for a loop.