Tourette Syndrome
I don't know about Tourettes, but I have a client with Parkinsons- a lot of involuntary muscle movement. Prolonged tapotement can be sedating, yes, but I'd probably avoid it due to the initial stimulation. My aforementioned client likes mostly soothing techniques like effleurage and slow petrissage, but does like some ischemic compression in the really tense areas.