Tic

I guess most people have tics, i.e. movements that cannot be controlled. I have a light version. I bite not nails, but the skin around the nails. I have really no idea whey, only that it feels good when I'm doing it.

Until yesterday. Then I bit off more than I could chew so to speak, and managed to rip off a piece of my skin on the thumb to the point where it started to bleed. Ouch.

This morning, very very early, I woke up with a throbbing thumb. I really have to stop this!