Low Back Pain

I've been having low back pain for 3 weeks but it's not getting any better.
I'm quite worry actually, coz i did a CWU on PID and i know the prognosis and outcome.
I did a lumbosacral X-ray last week & i even brought the X-ray to Mr. Azmi for consultation. He said there was loss of lordosis and narrowed joint space at L5/S1. The treatment is as usual: physiotherapy+NSAIDs+topical gel
I didn't take the Morbid coz i don't want to rely on analgesics and i don't want to get gastritis even though it is a COX-2 inhibitor.
I did physio everyday and i even went for swimming to streghten my extensor muscle of the back.
But the pain is still there. It will come whenever i sit/stand for too long.
I have to turn prone to study. But i can't concentrate in prone position. I would say maximum 15 minutes, my eyes are starting to close.
Bloody hell...............what a starting of 2009..................