It's so exhausting! I have an EBF 4 week old and a toddler. He never had these tummy troubles so I have been struggling to work out solutions to soothe my DD.
I agree I think it's unlikely to be what you're eating.
Your baby is so little and this is likely just a phase.
First of all I personally wouldn't go more than 2 hrs during the day without feeding in the first 6-8 weeks. That's just from experience and what I've read. But maybe more during the day would mean less at night.
But it is impt you feed at least every 4hrs at night. Some people have a decent supply without but for many with supply issues not feeding enough at night in the first couple of months is thought to be the cause.
Can you rouse him a bit more in the evening so he can do feeding and pooping a bit earlier?
Are you feeding him in a particular position for that 10pm feed that is any different? I wanted to feed DD side lying but she's not ready so I have to do laid back feeding positions and then give her a good burp and keep her upright on my chest while I read before laying her down.
Also, my DD does these feeding fussing marathons at night too. She gets gas and tries to feed for her sore tummy which makes it worse and then she is tired so can't feed properly and swallows more air!
I've found I have to put her in stretchy wrap and jig her around til the burps are out and she is sleeping. Then hop in bed with her on my chest til I know she's really settled before putting her down.
I think we have to hang in there til supply is established and there digestive system has matured. I know it's hard when you're exhausted. We all have a miserable cold too!
I find Dr Sears a great source of info for feeding, burping, fussy babies etc