It was diagnosed 5 yrs ago, while in the military (I am currently out). The doctor asked me to position my legs in weird ways and that would agravate the pain on the lateral side of my knee. After that I was placed on PT (for Ultrasound Theraphy) but did not do much after 2 months of stretching and therapy. I was told pretty much to "stretcht" or to consider steroid injections (yeah... I keep the discomfort, thank you very much!! ). I got discouraged since I did not see any results then and of course, did not took stretching very seriously. As embarrasing as it sounds I just said "screw it" and never went back to jog again. Now I am too heavy to run, but I welcome some bike riding. I do use the elliptical machine and walk on the treadmill at a decent phase (3.5 to 4.0) without a problem, a couple times a week. I just decided to join my husband during his bike rides (he was bitten by the Tour de france bug).