Unfortunately, it's not playing that's my problem, it's working. Occupational hazard for computer geeks, but musicians seem to spend a lot more time and effort on the issue.

I've cut way back on my playing as part of my rest, though. It's my bow arm in question, so I'm also looking for a very light bow to help reduce the stress there even more. But it doesn't hurt at all to play; it's a completely differnt kind of movement.