I have spondylolisthesis L4L5 and severe arthritis. My shooting pains have improved, but I still get bad hip pain when walking just 5 minutes. I had hip xrays before seeing ortho. They were normal. Do I need an MRI to confirm that my pain is from the spine problem? Or is it normal to have this type of hip pain? Sometimes my knee hurts too. It doesn't feel like arthritis.