That's the noise I heard this morning when I bent down to get a piece of paper off of the floor. Something in my knee stretched or tore and I'm telling you it HURTS. I can't bend my knee forward, yet ironically can bend it backwards and it feels better! I JUST had surgery on this knee August 2008. Luckily, I only have to work a 4 hour 30 minute shift today but it is going to be very painful. grrrr.... Any ideas to help it loosen up before 5PM? I don't have a heating pad at my apartment. Already taken 2 Aleve.