I was searching Google under a topic and an old write in popped up from a poster on this sight from 2004. I don't know if this poster is still around, but her post was eerily similar to my son's story. Right down to the premature week he was born and the age of tic onset, seven months. If this poster, ntbowen, is still here, would you mind if I asked if there were any recent finding on your son and what doc you are using at Duke. Believe it or not I live about 25 minutes from there.