Poop Question

Ok honestly before having kids I never thought/talked/or googled poop so much!

Do your breastfed babies appear to have any mucus in their poop? My baby has seedy yellow poops but I feel like they can be a little runny/slimy sometimes.

DD1 ended up having allergy issues and I had to quit breastfeeding at 2 months after totally eliminating dairy with no improvement. Her issues started with mucus in her poop and progressed to bloody diarrhea, fussiness, and weight loss. Not fun!

Now I’m obsessing over DD2’s poops because I’m so worried she’ll have similar issues. I don’t know if what I’m seeing is mucus or just runny normal poop. What’s normal here?! TIA!