My MIL has been watching DS from 12-530. I have been leaving her with 11 oz of EBM and she has been hinting that he needs more. Well today DH picked him up at 530 and MIL told him DS drank all 11 oz and she had to give him ABM because he was still hungry. I am only pumping about 1 oz/hour so I end up getting up in the middle of the night to pump extra for her already. Is this normal? I think he may have had a tummy ache from being overfed. Can anyone help?