Working out? P90x? other alternatives?

P90x works IF you actaully use it. Prob is you kinda have to already have to be in shape to be able to follow it.

For spine problems I tried doing pull-ups as part of a therapy and while it does not work for everyone in my case I am now 100% pain-free if I keep up with it.

Check with your GP first and then maybe make an appointment with a sports medcine MD.

Best of luck! -LY.