I have knee pain problem since 3-4 years but it was ok now a days and even I was able to sit cross leg for 4-5 minutes as I am doing yoga regularly. Two days before I was sitting crossed leg and when I tried to get up, some acute pain started from back side of knee. It is still persisting instead of local application and massage. I wanted to avoid painkiller but now there is pain inside the knee also and stiffness in my leg also with pain. Can someone help me with a remedy pl.