My DD is now 3 months old and about 3 weeks ago we began to have some poop/spit up issues. She's EBF. For the first 2 months of her life we had no issues with her poop or spit up. She transitioned from the newborn pooping frequency to pooping every 3-5 days with the characteristic yellow/mustardy poops, often smelling like vinegar, that were really huge.
Suddenly about 3 weeks ago she began to have these really large spit ups, she was pretty gassy, was considerably more fussy, and her poop went mucousy. It also increased in frequency to the point where she was pooping 6+ times a day, however, the amount she pooped each time would diminish as the day went on. I started to keep a food journal, but didn't really see anything. We also went to the doctor for her 2 month check up and had her look at the baby's bum for the allergy ring and she said everything was okay. After a week, this subsided and DD"s poops went back to every 3+ days with the consistency and smell you'd expect from a breastfed baby. We thought that she perhaps had a virus or something.
Last Saturday (1 week ago), this all started again (minus the excessive spit up and fussiness) and we've been at it for a little over a week. She's pooping ALL of the time. I'd guess 6-8 times a day. I'm changing her diaper more often because of poop than pee! In the morning, there's more of it, but it starts out as yellow coloured with a lot of mucous and seems quite watery. As the day goes on, she poops less each time, but every time she passes gas it's accompanied by poop. Sometimes just a shard. It starts to contain modest green hints as the day goes on but it still remains mucousy (although not as much).
This time, there's been no changes in her personality or her sleep patterns. We also weighed her again on Friday and she's gained 2lbs in 3 weeks (1.5 weeks of which had this funky poop thing going on). She's getting a bit of diaper rash because I think the poop is acidic, but I don't see that red allergy ring around her anus. She's also begun to drool a lot coinciding with this bowel change.
Does this sound like a potential allergy to you? Since she's gaining weight and not having gas or being fussy or really having any temperament changes, should I be concerned? What would you do?