Lately my son has been Breast feeding all day long, having breaks for 20 minutes or half an hour. The longest breastfeeding time hes gone was for 12 hours, with 10 minute breaks. My mum and hubby kept making jokes and even when I took him to the doctor he couldnt stay still while the doctor was checking up on him because he was acting hungry, and even she found it funny. Anyway, while he was feeding yesterday he let out a huge cry and started fussing really badly and this went on and off for 1 hour. My mum said, well thats not normal, theres obviously no milk. Really it could be true because maybe thats why he feed for so long without breaks, because it was taking a long time to get the adequate amount of milk he needed. I decided to use the breast pump that hubby bought me and to my suprise I was only pumping 50 - 60 ml. Thats definatley not enough.. so now Im giving bub formula and expressing breast milk while hes not feeding. will see how he goes on formula..