Three months feeding frequency

At this age, babies will know when they're hungry. Some babies don't drink alot but can gain weight healthily. As long as she's growing normally with gd number of wet diapers don't worry. My boy used to drink 180ml every 3 hrs at 3-4months but he was still in the 25% weight. My niece drinks 120ml every 3 hrs but is in the 75% for weight. But my PD wasnt too concerned cz my boy was growing well at 75% height, cld be genes frm my husband. So, if u have PD appt, may want to check with ur PD for reassurance.