I feel guilty for messing with a serious thread, so to make amends, I'll talk out my ass on one of your questions:
rockytopgophers saidHe also mentioned that I do 2 sets of 30 for every back workout. It's pretty tough to do and I've gone back to 3 sets of 10. Any one have any suggestions for that?
I'm guessing the reason your PT wanted you to do this was to help correct your "hunch over" -- this means strength and endurance in your back, not a "big" back.
So, I think you should pay attention to your PT. If it's hard to do 30 reps, then you need to reduce the weight.
Did your PT suggest any body weight only exercises? Like laying face down on the floor with your arms/hands at your sides, then lifting your head and your feet off the ground and holding for as long as you can? This is a core back stabilizer strengthening move and my guess is this will be extreeeemly difficult for you. If it is, then... guess what I'm going to suggest?
OK, I won't make you guess. Any move that is difficult is the one you need to be doing. It could take a year to do it well, but that is a year that is well spent. In your case, your posture and your center of gravity in the front/back axis likely needs to shift back, given the propensity to hold your weight towards the front of your feet.
OK. That's my ass talking. Pretty good for an ass, huh?