I am a new mom of a 1 month old and am concerned about how often he is feeding. I try to pay attention to his hunger signs(rooting,etc) instead of a schedule but it seems like everytime I finish feeding, he is ready to eat again sometimes as early as 20 minutes later. He has had appropriate weight gain and a good number of wet and soiled diapers. I've heard newborns have growth spurts around 3 weeks and 6 weeks, but this has been going on now for a few weeks. Any ideas?