I know someone close with very similar shittery as you do. As her symptoms began to develop, we visited doctor (someone considered to be a great one with big knowledge). To my biggest surprise, she was never given any PT/Steroid, but: - checked for a variety of autoimmune diseases - tested for Helicobacter - searched for dental-, cervix- and tonsil problems - was given vitamin D. Since she shows symptoms at multiple locations, no responsible doctor dares to try hardcore goodies like steroid-like AI drugs, since in case of an autoimmune root cause that could make things much worse.

As medical professionals run out of ideas, they tend to identify mental background. Just ignore these notes and don't loose your trust. On one hand this is their natural response to their limits of knowledge; on the other hand many people stresses so much over their condition that they develop a mental root cause indeed.

Yes I had shoulder inflammation from tennis, doctors wanted to stick a needle in my shoulder regularly. Did some research and nope it doesn't work. I tried some weights and so on to get it fixed, it had some benefit but still there, so just thought I'd have to live with it. Some years later I took up some reformer pilates and it's gone! after only a few months exercise - it is truly a miracle. I recommend it to everyone who has aches and pains it's magic.

I also had tennis elbow some years ago, the doctor had no advice, Tai Chi helped me with that, same principle I suppose - gentle exercises for the small muscles. Though the results from Pilates have worked everywhere.