The first time my heart nearly dropped was when I had my first child and noticed the front part of her skull “throbbing” when she cried. Fearing the worst, the Pediatrician informed me that was “normal.”
Flash forward to kid #3 and while changing his diaper I noticed his balls “inhaling and exhaling” as he cried. Before becoming as hysterical, I asked hubby if that was normal. Afterall, he is a male and should know the features of the equipment.
Needless to say, the same Pediatrician told me to stop looking so closely at my kids.