Hey, im going to see a sports doctor about this but want to get the opinions of people here as well. Over the past 4-5 days I've gotten this wierd pain when I bend my knee a certain way. Its not so much the knee that hurts is the back of my knee joint area and my calves. Its an acute debilitating pain that happens very suddenly with certain movements but does not hurt when I am not doing the movements. When I do hit the certain spot while bending my leg and the pain strikes, my leg kind of gives out underneath me momentarily. Not enough for me the fall tho. I've been stretching my IT band and massaging my legs a lot in the hopes that maybe the pain is caused by tight ligaments or muscles. Anyone else experience anything like this b4? or have any advice?