Slow down, please

I have been running around the office for the last couple of weeks, and have some difficulty of slowing myself down. So you can predict what will happen -- my knee produces those "knock knock" sounds again. Not as painful as before, but you know it's not good to produce those "knock knock" sounds. You can feel that the bones are "crunching" each other, which makes me feel even more scared.

Have to exercise some self-control and slow myself down.