My 4 wk old girl wants to feed every half an hour when she's awake.. doctor says may be my breast milk is not enough, but she's using 12-14 diapers a day with stools around 3-4 times. She gets milk every time she cries for it, so I am beginning to wonder if milk sufficiency is really a problem. She seems satisfied after 20-30 mins of nursing but then asks to be fed again within half hour. She barely sleeps as due to the intake, the diaper needs to be changed very often . I am exclusively breastfeeding. Is this normal for a month old baby?