FUSSY BABY

Hello mga mommies! Help, please. I have my 2nd daughter, 2 and a half month old. Grabe sya umiyak bago makatulog. Yung iyak nya na as in nauubusan na ng hininga. All settled naman na. I mean, nakapag-wash na, changed nappy, milk nya and all. (Not breastfeed) Ano po kayang possible reason? Maloloka na ko eh.