Normal yan, mommy, especially around this age kasi lumalaki na ang stomach capacity nila so mas efficient na sila sa pag-feed at hindi na kailangan ng ganyang dami every time. A few of us mums noticed the same thing with our babies around 2-3 months, one friend's baby actually went from 4oz to 2oz din, pero mas frequent na lang siya umiinom throughout the day, which is totally okay. That said, mas maganda lang i-confirm with your pediatrician sa next check-up if baby is gaining weight properly at wet diapers are on track, para sure-sure lang na lahat ay good.