how often to feed ?

Kim
Today marks 6 days old for Jake. All he wants to do is eat. Because he's so big (born 10lbs 15oz and discharged at 10lbs 8oz) doc said he should be at 3-4oz every feeding but he's been up looking for more every 2-3 hours... I'm starting to lose it... Is he playing with me, or could he really be that hungry? I don't want to under/over feed him but this is crazy!