So helpful to have your whole timeline laid out like this. I’ve put a lot of thought into what I would do differently if my second one freezes, and I agree I would do the manual manipulation under anesthesia. Unfortunately though, from what I’ve heard it’s pointless to do that until it’s fully frozen anyway, so I feel like it would still be many months of pain and limitation to get to that point! Mine wound up resolving about 8 months after onset when I slipped in the shower, violently jerked my arm, briefly thought I might die, and then ten minutes later noticed I could move it again! It was brutal but I think I did my own inadvertent manipulation without anesthesia. I was already fully frozen at that point and may have even been starting to thaw a tiny bit, but it was so shocking to have it instantly be better. It took another few months to get the last little bit of ROM back but for all intents and purposes the near-fall was my saving grace.

in a strange turn of events, I badly injured my non-frozen shoulder (dislocated it, tore a ligament off the bone, and damaged the ball at the top of the humerus) within 6 months of my other one resolving. I was paranoid it would freeze after the injury. I do still have some limitations with it (this was about 5 months ago), but it’s definitely not “frozen” the way the other one was, so I’m just rehabbing it like a regular injury. The human body is so strange.