I have a weird baby poo question... Last weekend and then last night, Daniel's poos have still been yellow but with this white stringy stuff in it that looks a bit like cooked egg white or tofu

sorry for tmi but google is giving me nothing and I'm not sure if it's normal or an upset tummy from some sort of allergy/intolerance

Oh and it smells bad

and he's still farting like a trooper! I've been dairy free for 2 weeks so am starting to think that's NOT the problem, although I am still eating bought foods containing milk products eg bread.
It's not mucus-y and doesn't look like pics I have seen of mucus-y baby poos online (the things we do!!!)
This morning when D woke up he farted non stop for about 5 minutes and seemed very uncomfortable (he was grunting and crying) and he had a very wet nappy but no poo that time.
He's breastfed with the occasional bottle of EBM.