swollen knees..

Supastarrnikki

okay, so i've been doing a lot of cardio, plus im on my feet all day at work.. and for the last week my knees have been swollen and extremely sore. It's now to the point where it hurt bad to even walk, and it's really making it hard for me to want to go to the gym I've never had this problem before, and a few years ago I used to run all the time. Someone told me it might be my shoes, but Im wearing nike running shoes, so I don't think thats the problem. Has anyone else had this happen? What do I do about? Ive been icing them and using tiger balm, but it only relieves everything for a short period of time.

Supastarrnikki

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