If you've had pain for 1-2 months you need to go see a doc and get an x-ray. Don't mess around with back pain bacause it can really effect the rest of your body.
i have been doing pilates for 4 weeks noiw..and both my pilates teacher and osteopath has noticed my back and butt muscles have strengthened.
i feel a lot stronger too!
it is the best for back pain..nothing better after a long day.
istill get pain, but after pilates..its much less!
Go see a D O C T O R, so he can take X R A Y S!!!!!!! If the active recovery and other stuff is not working you could have a bona fide(sp) injury to one of your disks.