[dtxtremeiiispecial]

I think its about 38 years too early to give it up, man.

I like what Bo said about finding an instructor who could take a look at you and tell you what you need to change.

You may want to consider seeing the doctor. You have stopped and resumed playing, and you have a lot of good information to tell a doctor. I don't know if there could be some generalized arthritis you're beginning to get.

Or it may be that it's time to ease up on that hard crack on the snare -- or at least use sticks made of softer wood. Bad posture will definitely affect your neck and your back. Two excellent books that cost about $10 each on amazon are Treat Your Own Back and Treat Your Own Neck. They will explain the correct postures to take.

The thread Paulo recommended to you is a good one -- it may help with the wrists and elbows.

You probably just need to work on a few things like that. But your body is telling you that you DO need to get to work on those. Here's to another 20 years!