I thought babies fed more often when a growth spurt was coming. DD isn't doing that, but she's feeding for a lot longer each time than she was until a couple of days ago - could this be a growth spurt? Is there meant to be one at around 4 months? And I am feeling more engorged than I ever did when my milk came in (at least I assume it came in as DD was drinking it, but I didn't notice any change and the midwives kept looking at me like I was barking when I said that) - is that normal?