I have done scan and x-ray all showed that i have no problem but i still have this backpain. what could be the cause? what else can i do?

MRI of the spine: There are a number of causes of back pain. Mri seems to be the best screening test.

Scan: Do you mean you had an MRI scan? Some people will have a ct scan, which is still not terribly sensitive in picking up causes for back pain like an MRI is. If you have had a normal MRI of the area of the spine that is hurting, we start thinking of pain generators outside the musculoskeletal skeletal system like a kidney stone, aneurysm or an infection.