you must consult it to the expert doctors..
We have the same problem, I'm turning 20 now. I started having that knee problem when I was still 15 years old, and it's still occurring to me once in a while. Both my knees have experienced that feeling like as if it has been twisted, and it's really painful, I always cried because of the unbearable pain way back when I was just a 15 year old girl. Right now, I only have that twisting knee in the right knee, and after the pain my knees would have a muscle cramps.