He's been on solids for a month, eats well etc but his fontanelle is often slightly sunken. No other signs of dehydration but I wonder if it because he doesn't have much water (i offer but he's never keen). He has a lot of BFs throughout the day, often very short ones which I think means he's getting lots of thirst-quenching foremilk? So is this enough for him or do i need to really push the wayer as well?
thanks