I think I am going to take the next 6-8 weeks off. I have already lost 8 lbs since stopping weights.
Maybe my body is telling me that after 40, it may be time to hang up the iron game. I think I recall a few of the guys who competed with Arnold in the 1976 Olympia were in their early 40s.
You may have to adapt to changes, but I wouldn't discount training altogether. Perhaps you can't train some shoulder or chest movments as well for a while, but who knows, perhaps a year from now things will feel much better and you can move forward with those areas again.
I barely trained legs or lower back for nearly 2 years in order to see how things went, I think SOME good healing did happen, but of course, atrophy and weakness came along for the ride. I may still be in my 100th attempt to regain it back again, but it's better than having called it quits without knowing that there's no way possible to fix it.
Like I said, keep your chin up, spend more time working on the areas you CAN train, and maybe every few months see how some really light (I'm talking empty bar to test things) shoulder or chest work feels until you can start adding a mere 5 lbs. at a time to work back up. If things aren't really, really bad to where you have pain in all areas of using the affected joint, it could just be one of those situations where a long period of recovery and lots of slow, steady rehab is the only way to come back. No point in quitting everything if you don't need to, so work with what you have, rest that affected area for months before giving any try to working it again, and hopefully time will help make things better!