illey, I found out that my DS wasn't getting enough mainly because he wasn't putting on much weight, average less than 70grams a week. By 12 weeks he was sooo skinny and started losing weight, I knew I had to start topping up with formula. I had the help of an LC and my CHN to eventually diagnose him having a weak suck which of course was a bad thing for my supply. It was a difficult journey but we managed to keep breastfeeding as well and even getting rid of the top ups after a few months and went back to just the breastfeeding until 14.5 months. The lack of weight gain was the biggest sign, everything else seemed to be ok at the time but now I realise it wasn't...eg he should have been having more wet nappies and he was always still screaming after a feed which I thought was wind.