Aww, paos agad ang baby mo, mama? That's worrying talaga, lalo na at ganyan biglaan, kaya I'd really suggest checking with your pediatrician ASAP, baka may sipon or ubo na nag-start at kailangan na ng proper check-up para ma-monitor ang breathing niya. A few of us mums had babies na suddenly paos din at naging cough or mild colds, so better safe than sorry sa 3 months palang kasi fragile pa sila.