9mo DD had gastro last week, she was off her solids and milk (formula fed), vomiting maybe twice a day and having diarrhoea, but not to the point I was worried about dehydration.
She seemed to be perking up, and managed lots of solids and bottles today (was back in nursery as I thought she was better 
) but for the last few nights has done this weird thing where she settles to sleep at bedtime as usual, then wakes up crying about 30 minutes later. I have given her a bottle each time as I assumed she was hungry after not eating / drinking a lot during the day, leading to projectile, large volume vomits all over the room, much crying and taking ages to settle. Then waking at 3am for a bottle which she keeps down fine. This just happened again, she finally settled after downing a beaker of dioralyte (yuck!).
I get that babies can be intolerant of milk for a while after gastro, but why is she tolerating some bottles and not others? And she was in great form all day, until this thing after bedtime? I'm getting worried about bad sleep habits forming, although obviously I'll do whatever she needs while she is ill. And should I be keeping her off milk for a while until her tummy settles down? So confused!!