Anyone with any further interest in Tourrette's might consider reading Dr. Oliver Saks book An Anthropologist on Mars. I've read almost everything that's been written on the subject (which is surprisingly little) and there is simply no better description. A search of some of my old posts will also reveal some further aspects of my experience.
Try Elkhonon Goldberg's, The Frontal Lobes: The executive Brain and the Civilized mind. Very good discussion of tourette's neurology and a long, long interview with two highly accomplished tourette's sufferers.