How to deal with extreme physical pain
The OP has "frozen shoulder". IIRC usual treatment is to immobilize the arm and eventually, after a year (or two) the shoulder will "unfreeze". When I read about frozen shoulder I was astonished: no good  underlying diagnosis, little knowledge of what caused it, but clearly knowledge gained in the hardest way - experience over generations.And in this case, rather than wait a year, someone decided to perform "adhesive capsular release" surgery not once, but twice! What happened to "Primum non nocere": "First, do no harm"?My hat is off to the person(s) who first understood that doing nothing to the shoulder was the correct therapy. And woe to those who prolong suffering by "fixing" what they do not understand.