My 4 week old feed amazing for the first 2.5 weeks. Lately she gets really irritated while on the breast. It's not everyday and its not all the time, for example, Tuesday and Thursday this week she is fussy when she nurses but fine Monday and weds. I think it may be gas but I can't tell. I'm also confused about her hunger cues. Maybe she's not actually hungry so I give up and wait but then the same thing. I had an appt tonight and left 8 oz of expressed milk for my husband to giver her. She had eaten at 2 and at 530 drank all 8 oz. now I'm wondering if I'm not giving her enough to eat. My confidence is dwindling and I'm scared I may give in to formula. Can someone offer me advice or share their experiences if similar? Thanks so much!