I have really bad knee pain! how can it go away?
im only 16 years old but i am a runner. right now ive been doing cross country but my knee has been hurting a lot due to the fact that two days ago we did hills and on the way down it was a lot of pressure on my left knee. i thought i was just swore but the next day it hurt a lot. i couldn't bend my knee because it would hurt a lot to a point where i would want to cry. it also feels like the two knee bones on the joint are rubbing together. i don't know why the pain is caused and i don't know how to get ride of it. i have rested and i also have heated and iced. what else can i do? or does anyone know why this is happening?