Are you a flapper, a rocker, a spinner, or maybe even a twitcher? In other words, do you stim? For the uninitiated it means self-stimulation (think hand-flapping, body rocking, spinning around in circles, etc - not masturbation!)
Oddly enough, until I found out I’m autistic, and then read about flapping, I don’t recall ever doing it before: unlike the others, which I know I’ve done throughout my life. It’s like I unconsciously started copying what I’d read. I did it with stammering, too: never stammered in my life until after my diagnosis (I’ve always been more prone to becoming mute than babbling, when anxious), then suddenly I couldn’t stop tripping over my words!
So I say flap like a loon if you feel the need; and if anyone questions what you’re doing, just tell them you’re practising yoga!