@Madeleine thank you!
Most likely gas I would try giving him gas drops if that doesn’t work and he continues to be fussy over the next few days I would consider changing what you’re feeding him if he’s breastfeeding then I would start by taking dairy out of your diet then if he’s on formula I would get a dairy free formula like soy and see if that helps
My baby gets like this she gets very gassy to the point she’ll burp minimum 4 & 2 farts. If she just sleepy and fighting it o have to play tye tribbett only thing that calms her. I think it’s bc I went to a tye tribbett concert during 3rd trimester.
Look up purple crying. It's an acronym