Thanks for the suggestions a few weeks ago about better squat form to prevent the strain in my upper back. So I've taken to taking off my shoes while squatting and pushing with my heels instead of the balls of my feet. My weight must have been too far forward. I can't lift as much, because I'm working on the balance more to keep myself from falling backwards, but that's okay with me. My upper back doesn't hurt anymore after doing them, or at least not much, and that's what i was hoping for.
