DT, they are similar to how Ian describes his. i can run but there is a tenderness if I kneel down or bang the knee cap accidently. Are you still doing squats to avoid the injury returning and do you still have that residual tenderness?
Sorry, I've only just seen this. I don't really do any squats now and haven't really had any knee pain since. From memory, it took several months for my problem to clear up. I was doing around 200 to 350 squats per week typically in 3 or 4 sessions