Are these symptoms to a torn MCL?

Alright so I run track and cross country, and during a summer workout sprint drill(running 70 yards, quickly pivoting and turning back) I really hurt my knee I was down on the ground in the worst pain I had ever felt. I went to the athletic trainer, she put me on crutches told me to get it checked out..I'm just to stubborn to, but now im off the crutches and not running the XC season.. but I am still dancing, and my knee is KILLING me it clicks when I bend it, is constantly sore and whenever i run/do active stuff its just awful. The pain is on the inside of my left knee and kind of towards the middle...if anyone has any clue that'd be great.. thanks so much!(: