My baby is 4 months old, her birth weight was 3.04 and current weight is 4.50 , doctor advise me to feed her after every 2.30 hr, and from last 3 days I am following this routine but I have seem changes in her behaviour she is crying alot n sleeping alot, shall I stop schedule feeding and go back to feeding on demand? previously she was taking only 40-50 ML per feed , but after starting Schedule feeding she is taking approx 80-90 Ml per feed, if I start feeding on demand will she will take same feeding?