Thank you so much for your replies, you have helped heaps at putting my mind at ease.

Nathan was weighed on the same scales except for his initial weigh-in at the hospital.

The nurse doesn't seem "worried" as such but is concerned. She told me to wait and see how he goes over the next week but I don't want to let it get too out of hand and would rather try and get on top of things before it becomes a panic.

I have been trying to feed him more often all day but I am not having much luck, he won't feed unless he wants too and when he does he definately lets me know. After he didn't gain much weight last week, I expressed off about 20-30ml of foremilk so he would feed on the hindmilk and I thought that might have fattened him up a bit - apparently not.

Thanks again and any more suggestions will definatley be helpful.