Hi everyone! I know the site is more for lifting and GAINZ but I thought I would post here anyway to see if I could get answers. I have been a long distance runner for several years and I've been lifting the past 3 months to increase my upper body strength. Over the past several weeks though (possibly just under 2 months I don't remember exactly) I have been developing runner's knee in my right leg. I thought it would go away with some rest and recovery but it always comes back when I go back to running. The longest I go off the track to heal is about a week and I feel fine until I try to start running again. Occasionally it makes it difficult to walk and I have to limp (this happens on days I try again and the pain flares back up). I'm not sure why it is not healing and I'm wondering if I am doing something wrong here. I've tried adjusting my runner's stance to take more pressure off my knees but that doesn't seem to be helping. Is there something fundamental I am missing here? What is the best way to recover and how do I prevent this in the future (this is the first time I've developed runner's knee)? It sucks a little because I am really passionate about running and it is my main source of cardio. I don't like being held back from it.
If it helps here are my basic stats:
Male 20 years old
5'9"
127lb (Last I checked)
I am also flat footed so my sneakers have built-in arches