Babies tend to appear hungrier when they are going through a growth spurt. During this period, baby would feed more and need less sleep. He/she may also appear clingy and more restless. It will last for 2-3 days but could also go up to a week.
Here’s an article on baby’s growth spurt:
http://www.babycentre.co.uk/a25012757/baby-growth-spurts
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