Sure... by grouchy I mean...where before she'd wake and take a while to get upset, now she wakes up crying (not in pain - but upset, i've presumed hunger).
I always try to stop her from sleeping during a feed, and then change her nappy after she's finished (usually about 20 mins (but i spend a while burping her or we have projectile vomiting), although sometimes she does seem hungry again straight after her nappy change, so i feed her a little more, talk to her for a short while, then put her to bed. She still wakes at night, so if she feeds around 6-7 ish I class this as her first feed of the day and get up to change her (she sleeps again very quickly though so i dress her after the next feed) She goes 2 and a half to 3 and a half hours before the routine normally starts again.