My daughter will be 4 weeks old on Wednesday of this coming week, I was just wondering how often and how much she should be eating? She barely spits up and has never puked on me from over eating but, sometimes she’ll down 3oz and then and hour n half later sometimes 2.5 hours she seems like she’s screaming for more. Ive never tried 4oz she always seems satisfied after her 3oz. She doesn’t always burp the best butt his last feed she did so I didn’t think gas was to blame. Doc says feed her when she’s hungry I’m scared to over feed her and upset her stomach…