Hai! Kalau cirit je sekali dua tu normal ja, terutama when you're switching formula, perut dia tengah adjust dengan susu baru. Tapi if it continues or kalau ada blood/mucus or dia jadi lethargic, better check with your pediatrician ya sebab sometimes formula memang tak sesuai dan kena try brand lain. A few of my mum friends went through the same, took a few tries nak jumpa formula yang betul-betul suit their babies, so don't worry, you'll find the right one!