Come to think of it this happened twice. Once in the way I described, and once in a track crash. I couldn't make power coming out of turns. So I was fine steady state, but accelerations killed me. It was late in the year, August, but it pretty much killed my season. No that alone, but on the heels of it I went on vacation and I really lost my upper end.

I'd recommend doing whatever you can that doesn't hurt. It's a self limiting injury, meaning you're not going to make it worse, but it hurts like hell.