Have hip pain and legs especially after prolonged sitting mri spine clear and blood works clear what can i be its driving me crazy!?

Hips?: Some people have afi ( acetacular femoral impingement ). More prominent in young males due 2 a congenital abnormality @ the hip. Simple images can show this. $ cheapest lateral of hips and measurements done next ct, MRI & bone scan. If all else is wnl see a hip specialist. Worth a shot if very bothersome

Piriformis?: With a normal MRI and bloodwork, pain in hip, buttock and legs may result from piriformis syndrome. The piriformis muscle is deep in the buttock, is an external rotator of the hip and the sciatic nerve exits the pelvis under this muscle. If the muscle is tight, it can put pressure on the nerve and mimic symptoms of a radiculopathy. This can be evaluated by a pm&r specialist, orthopedist or pt.