WHAT TO WATCH FOR
While many harmless and common newborn behaviors cause new parents great concern, it's always best to check with your child's doctor if your infant:
Doesn't raise her head when lying on her stomach after the first few weeks
Doesn't seem to respond to sights or sounds
Exhibits a lack of energy or alertness
Refuses to feed
Is vomiting (as opposed to spitting up — which is normal!)
Is not urinating
Has a weak, high-pitched cry
Has a pale, blue, or mottled complexion
Has diarrhea (copious, watery stools, sometimes with mucus visible)