I am a runner/walker - an independent one, doing it to push myself. I was an athlete throughout high school. Over the years I suffered different injuries - herniated disk (c4 repaired but did not completely remove pain) and a pain which started with partial paralysis during one of my pregnancies because baby was laying on sciatic nerve. That was relieved with birth. I went many years with little problems except for a weak back and pulled muscles there. 5 years ago, I began having unexplained leg and hip nerve pain. I've put myself thru being a guinea pig - physical therapy, anti-convulsive medications, blood tests and just gave up. Until I went to a doctor who listened to all my problems. Conclusion - I had been b12 deficient over a long period of time which can cause perm nerve damage - I now take weekly injections 1mil. I am also Vitamin D deficient - not on a regular blood test and now take rx vitamin d weekly. The biggest improvement came with the antidepressant drug Pristiq. You can do the research. I don't recommend drugs. If you can do all diet to improve your blood work. I am now pain free two years later. I take lowest dose Pristiq and have taken a couple of breaks over the years to see if pain returned. It did not! Working to wean off. Good luck.