LO is 4.5 months old and he's been a total fuss bucket today. Nothing makes him happy for very long, and when he's tired of whatever I'm doing with him, he arches his back, stiffens up, turns beet red and screams! This awful, yell/screech/grunt sounding thing. He usually holds his breath while arching his back/before screaming, so I know it's coming. The breath holding freaks me out, too

Do/did any of you have babies that throw little fits? I thought this was something I would be expecting at a much older age! I should mention, he does have moments of being his normal cheery self... I think a lot of this has to do with the fact that he refuses to nap for more than 20 minutes!