Yup...I do this. Actually it is one of my least favorite parts of all of this. I swear that sometimes it feels like it will never stop. There have been times when I have been awake for days if not weeks because of it....walked around all twitchy and felt like I was coming out of my skin.

As was posted above doing things that occupy the mind help, even if only for a bit. I have also found that exorcise helps somewhat but maybe that is cause I do it after work (before bed) and I am simply too tired to think then. Who knows.