Pain for 10mths only after bone marrow biopsy at the site cancer doc said xray fine orthopedic said sciatica pinched nerve is this normal?

No: No, it would not be normal to have pain 10 months after a bone biopsy from the procedure itself. So possibilities include: the area that was biopsied is abnormal and causing pain, for example if the biopsy was done on a lesion that is still there; or you had a complication, or there is something else causing the pain (like when the doctor suggested it may be coming from a nerve in the back).