I've been running since September and like others have become addicted. It feels do good. However over the last couple of months my knees are gradually getting more painful. I'm only running 4 miles twice a week, so nothing too gruelling. The psin starts about 15 mins in, just when I'm finding my mojo! The knees also hurt now when not running. I've had gait analysis and wear good shoes. I'm generally in good shape so this is really frustrating. Do I have to stop running? My non running friends keep going on about permanent knee problems. Anybody else had this and found the knee pain just goes???? Thanks everyone.