I have been having low back pain that radiates into the thighs at night for possibly two years. I have been taking Maripex plus Naproxeon for quite some time. Tests include MRI of upper and lower spine, X-rays, two bone scans, a nerve test for any damaged nerves and physical therapy to relieve the pain. I am told all of these tests just show arthritis and osteopina in my left hip. However now if I sit for an extended length of time, my legs tingle - sorta light numbness when I stand and I feel lightheaded for a short period of time before wearing off. I am not sure where to head next to diagnosis these conditions. Can you shed any light on these symptoms. I am female - age 65 - just retired and no serious health issues.