I went really heavy on leg extensions last workout. Ever since then whenever i bend my leg a lot(like squat down parallel) the muscle or tendon not sure which that attatches to the knee hurts really bad. It feels like a rubber band being stretched. It's been a week since I did legs and it still hurts whenever i squat down or bend it back, otherwise it doesn't bother me in normal walking and stuff. I was going to try and do legs and just go light and see how it feels. Should I just lay off for another week to make sure it's ok or go for it? Any1 have any idea what this could be?