lower back pain after and during working out

Every year I become involved in sports( i'm currently 18), but within the last 2 years I have had off and on again lower back pain. I have mild cerebral palsy and osterporosois in my knees so I'm used to normal irritations being a part of playing sports; however, this pain runs down from the left lower back to right under my butt. And no matter how I move my left leg or put weight on it, it causes pressure on my lower back. Sometimes I can barely walk on it but other days it doesn't effect me at all. (Tynenol, Bayer Back and Body do not work to lessen the pain)
I'm curious if this is normal for my condition or something i should look more into. any suggestions would be very helpful. thank you!

[marymagdeline]

Hi. First of all, I am so sorry you are having all the problems that you are.  Second, I think you posted your question in the wrong forum.  This forum is for people with bowel disorders called Chrones and Colitis.  I think you should post this exact same question under each of these 3 forums...
1. Cerebral Palsy
2. Arthritis
3. Orthopedic Sports Medicine.

Good luck!

[crabby636]

thank you