Was grappling and went in for the shot and don't know how it happened but all I know is after I completed it I stood up and was in a sharp burning sensation pain right below my knee cap king of where it's right under. It's the upper tibia I believe, it's the long bone in front of your leg right below your knee cap. Well that area close to the knee cap was pinching with pain and has been since then. When I keep it bent for too long it burns so badly so I straighten it out and it feels weak and even pops at times. It's so strange but I want to know if nay of you all have experiences this or how long it takes to heal or how to treat it. I don't have a ride to the doctor as of yet but will in two days.