Not an MD. I think they probably lurk here though.

Does it hurt in your armpit? For me hurting deep in the armpit went away after the pec minor release. It does still hurt toward the back of my armpit.

Have you done pt? That is first step. Running is a good exercise or walking is a good exercise for tos. Avoid anything that will strengthen your pec major, pec minor, or scalene muscles. Work on strengthening the lower abs, back of neck, and rhomboids. Skip all other upper body strengthening exercises. Get massages, sit in hot tubs or warm pools or baths. Skelaxin is a good muscle relaxant that does not make me loopy. Don't sleep with your hands above your head ever again in your life, lol.