Familiar po ba kayo sa grunting baby syndrome?

Hindi ako personally familiar sa term na "grunting baby syndrome" pero from what I understand, ito yung when babies make grunting sounds habang natutulog or nag-poop, diba? Actually, a few of us moms have noticed this sa aming babies, super normal lang siya most of the time, especially newborns na adjusting pa lang sa digestion nila. That said, kung worried ka na may underlying issue or kung ang grunting niya ay accompanied ng difficulty breathing or feeding, better check with your pedia to be sure, kasi hindi ko fully expert dito! What specific concerns mo about your baby's grunting?