Hi dr, I have 1 n half,month daughter, her behaviour is little bit strange as whenever she is in sleep she latch my milk properly but whenever she is  Awake she doesn't latch it properly ,she keep nipple in mouth n leave within a second, this she keep continuing and that's  why she doesn't get milk,so she become angry like this she does this kind of act for 3 -4 hrs and when she get tired then she finally sleeps ,this is very irritating please answer is this normal behaviour in newborn or Not,and what could be the reason of her such a behaviour Thanks