C.A.
Newborns are noisy - lol! He will let you know when he's not happy (ie crying) Babies are pretty good at that. All of mine were grunters. If a baby is gassy to the point of unhappiness they will scream and cry nearly inconsolably. If your baby does reach this point try the football clutch (tucking him/her with tummy down over your forearm and gently bounce), turn on the dryer, lay a blanket on top and lay them tummy down on it or lay them down on their back and gently rotate their legs up towards their tummy and then back down. But other than that grunting is completely normal.