Last weekend i dont remember anything specific but my knee that had been giving me trouble got considerably worse pain wise. I went biking the next day and that was pretty painful too. The pain is right at the top of the kneecap (closest to my thigh) and when i rub my knee i can pinpoint the pain. has anyone had this? is it needed of an MRI? i can still walk aroun but its just when im active it hurts.