I developed a sore right knee about a week and a half ago - hurt to walk, warm to touch, top of kneecap sore. Can bend back no problem, but hurts when rising from chair and is painful at times. Have used ice packs and use compression bandage which helps. Particulary sore after awakening in morning but no trouble sleeping. On the day it started I had been walking as I do on a daily basis. I went to my local doctor who said I had patella quadriceps tendonopathy and she gave me some literature with exercises to do which I have been doing but find them painful. I am 64 years old and definitely not an athlete. I just wanted a second opinion as i don t seem to be getting any better.