Gassy Baby?

So this is my first EBF babe (3rd baby tho! :)). She’s been fussy the last few days. Gassy as well and spitting up a bit. She’s 3 weeks as of yesterday.

I bottle feed so I know she jumped up from 2.5 oz to wanting 3.5-4 oz in a feeding at times. I try to tone it down but she’s been set on having a lot. 😂

Think the extra milk could be the reason? Am I over feeding her? She’s going anywhere between 2hrs and then up to 4.5-5 hrs between eating. If it’s 3oz she’s back up in like 2hrs for more.

All that said, could it be something I’m eating as well? What are some foods I should avoid if she’s been fussy? Thanks mommas!!