Hey Philly, I now about that "holding your breath" feeling. As an Aspie/ADHD, I got some ticks aswell. Some are hidden beneath general ADHD restlessness, but there are some. Like the itching feeling that makes me wanna pull out some hair from my beard, that I always prefer to sit in lotus/tailor stance. I have a hard time sitting still with both feets on the floor, it is so VERY uncomfortable.
I canīt help fiddling with my pockets, opening and closing zippos, button or unbutton (thank God that it is pockets we are talking about and not other stuff). Also, I have a certain pose I tend to get into that just gives my wife the creeps!