Over 3 years ago I suffered from a T12 compression fracture. my dr at the time gave me painkillers and i went to physical therapy for 3 months initially with minimal results. he also found that my spine no longer has the S-curve that it had before the accident. Currently I still have severe lower back pain after sitting for any period of time. also, within the past week after standing up, when i begin to walk i get sharp pains at the bottom of my back. any treatments for this?