I have been running for about two years now, on and off, and recently I have had a mild - but annoying - pain behind my right knee. I went to an orthopedist, who gave me a cortizone shot, but told me it was most likely a tendonitis. Since then, I've determined that the tendon which runs behind my leg - on the outside - is unbelievably tight on the right leg (I determined this by comparing with my left leg). When I say "unbelievably tight", I mean to the point that a nurse thought it was initially a bone. Now I am still able to run, but that nagging pain is always there, whether I run or not. What can I do to loosen this tendon? I mean in terms of stretches, exercises, even medicinal treatments. Do I need to see a doctor, or is this mild enough to take care of on my own?
Thanks for any help. Also, I don't know the exact name of the tendon, but from various pictures on Google, I would guess it's the hamstring tendon.