Began running regularly at 14 and had been injury free.  At 25, experienced a shooting pain in the outside/rear part of my left knee, about 4 miles into a run, in the area where the hamstring connects.  Has plagued me for 2 years which includes clean X-ray and MRI, 2 stints of physical therapy, extended breaks from running/cycling, regular massage therapy including rolling/icing everyday.  Injury…