Baby gagging himself w hands

My one year old has gotten into the habit of sticking his fingers in his mouth and making himself gag sometimes to the point of throwing up. It’s been a new behavior over the past couple of weeks. It’s not every day, but he’ll usually do it for 2 days then stop doing it. The two places he’s managed to gag himself to the point of throwing up are in his pack n play (when he’s in there playing while I do things around the house) and in his crib when I’ve put him down for a nap (he’s protesting a nap and he’ll gag himself). From what I’ve seen online, it’s a phase and a exploration thing. He hasn’t made himself throw up a lot, but it’s happened at least 4 times over the past 2ish months. I’m not overly worried about it. Just wondering if I’m the only one dealing with this. Anyone else?