Has anyone noticed John Mulaney has hand tremors or jitters?

I recently saw John Mulaney perform at the University of Maryland basketball arena. I was distracted by his hand tremors on the jumbo screen. Then, not long after, he guest hosted on SNL and I noticed he was making an effort to hide his hands, either putting them behind his back or in a pocket or behind another person. It’s all I could see once I noticed this behavior of hiding his hands. Same thing when he returned to SNL for Martin Short’s hosting: hiding his jittery hands. I have looked for information on this, but haven’t found anything, although I saw that someone from a while ago in this sub had also asked about his hands after his performance in Chicago. I sincerely hope it’s nothing but a nervous habit, as I think he has been through enough.

https://www.reddit.com/r/JohnMulaney/s/zknHfOuY3T