Hello my fellow knee suffers;(
I had never had knee problem until 3 months ago. I went to the Orthopaedist and he took xrays. I have perfect bones so thats good, but basically its tendonitis, mostly in the inner part near the knee cap. Other than rest, avoiding direct weight lifting to the quad area (ie, squats & lunges) and taking it real easy I don't think it will just go away. It sounds like this is what most of you may have too. I decided to go to physical therapy to help it along. I have not worked my legs in over 2 months, ugh, but I am allowed to do cardio in forms of the stationary bike and elliptical (flat or on a very slight incline). I even told the Therapist I was doing HIIT on the elliptical for 20-25 minutes a couple times a week to keep my quads tight/shapely and she said that was ok. She has me also doing band strengthening exercises. Staright leg though, no bending to work the quad. Its all about strengthening the knee area. Plus, I am icing it every day and have a foam roller at home or use the one in the gym and really work loosen IT band which has been a real huge help. Making sure the muscles aren't pulling the knee cap out of whack is important. So STRETCH!
I was told I can resume leg work in about another month, slowly. I will start off with lunges but half way not too deep and take it from there. I hope this "lenghty" response was of some help. I say really be careful, if you do major damage you will be out for the count for a long time so workout but be smart and make sure you stretch and try and get a hold of the foam rollers.
Skye