Foods that irritate your baby?

I met with a LC who told me that aside from going dairy free or soy free I don’t need to worry about something I’m eating irritating my baby. Im just curious if anyone has found anything else they know for sure irritates their baby when they eat or drink it?

I’ve cut out dairy but the LC said I need to wait 21 days for it to be completely out of my system. Don’t drink caffeine. I don’t eat a bunch of soy but of course they do throw it randomly in a lot of shit.

My poor baby is SO gassy today. The only difference is he took a bottle this morning - an anticolic one by dr browns. The only other thing I can think of is that not this past night but the night before he had some milk that I realize was pumped before I went dairy free.
He’s had watery diarrhea and a lot of gas. Anyways any ideas help! He’s currently on gas drops before every feed and I know diarrhea is a side effect of them, and he’s also about a week and a half into culturelle probiotics. Thanks!!