hello sir, my son 45days old. now a days am nursing for my baby. but he sucks for 10minutes. and he slept for 2 to 2.30 hr. that too he slept while suck. when he was new baby I expressed milk for him since his birth weight is 2kg. but now his weight is 3.600kg. kindly help me is that any pbm ? Is it OK only 10minutes