Yesterday I saw a preview of this really amazing film about John Davidson and his journey with Tourettes, it's actually really helped me deal with my sons own journey and explained a lot. I've just seen that Hello are promoting free tickets for screenings of the film next Tuesday so I wanted to share in case it would help anyone else:
https://www.hellomagazine.com/film/854910/john-davidson-tourettes-i-swear-film/?viewas=amp