My baby is in 4th week, he was formula fed from beginning... aptamil gold... he started with 30ml in newborn stage and now drinking 120ml and sometimes 150ml... After completing it, he sleeps just for an hour and again cries with hunger. then again drinks 120ml for sure. This cycle continues whole day and baby takes around 10feeds per day 120ml each. Is this normal for his age? Question is arising because he is not fulfilled and doesn't sleep for longer like all babies. Please help. His poops and pees are all normal.