Ok, I dont think I injured this during a badminton game, but it sure is affecting my game. There was once I walked and was on my feet the whole day without sitting down. and towards the end of the day I experience this sharp jolting pain at my knee area(feels like a current passing through your knee). and everytime whenever I I walk too much or stand too long, I get this current going through my knee, it makes my knee go wobbly for a while. It has been going on for some time now, but I dont know how to make it go away. plenty of rest doesnt seem to work for me.