What do you think is wrong with my knee?

I use to do gymnastics I was in level 4 and trainning 6 hours a week. I stopped 3 weeks ago because I hurt my knee I played for 5 years I went to the physio they said it were and tear but I don't no
It hurts to walk up stairs, run, it swallon I heat pack it and if I do to much walking it hurts and it an always there type of pain my knee cab facing the wrong way I may need surgery when I get older and my physio said it getting worse then better.
So here my question
What do u think it is???
Do I need crutches?????
Please help me
Thank you
ask_me123
Asked Nov 21, 2013
Edited Nov 21, 2013

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