My shoulder has been sore the last few weeks, so I finally had the will - and opportunity - to corner one of the surgeons for advice. It really is amazing to see anyone in full skill mode, and with someone so able and well trained, it's a kind of joy. I was able to be an oddball example, so he seemed to enjoy the challenge. Nothing like a good biological puzzle for these guys. And they tend to be very generous with their time and effort for the people they work with.
Consider it a perk.
Upshot, my shoulder is stable, probably a capsular irritation, and he gave me some stretches. Downside? I have something very strange about my bony anatomy. My shoulders do not rotate properly. I couldn't answer the "how long has it been like this?" although after I got home, I think I figured it out. Yes, I think I have. Because in Basic, when I had to do push-ups, I could not make my arms do what everyone else did, although I managed a workaround. To the point that I had no problem passing the PT test, including the push-ups.
So, I have Issues with my shoulder joint, but I'm working on reducing the pain. He seemed to think it was irritation of the capsule, which makes sense, since the muscles all work, it just hurts.