DS2 is 13 weeks coming up, we were just starting to get 4 1/2 to 5 hours stretch between feeds during night (he is FF and feeds 2 1/2-3horly during day taking 5-6oz each time). The problem is he has started waking more frequently, three nights ago he was waking to be fed 3hourly, two nights ago it was 2hourly last night he fed 11,2.30,5 but was waking crying at 3am, 3.30am then from 6am onwards.
I was just wondering what could be causing this?