File :-(, x, )
Anonymous
The in-side of left knee gives me some pain whenever I put pressure on it, and has been for a little under a week now. There's no visible differences between it and my right knee (which is perfectly fine), and and they appear to be equal in flexibility. I haven't been doing any strenuous exercise recently, and don't think I have any serious past injuries related to it.

Any ideas what it could be? I'm a normal weight 20 year old male.
>> Anonymous
cancer