Just looking for some reassurance/advice. DD is nearly two and has been throwing up every few hours since the small hours of Wednesday night/Thursday morning. We have been staying at my parents' house for my little bro's wedding and yesterday morning my mum had a big go at me for bfing DD, saying that I should just be giving her water, I was going against medical advice and would prolong her illness and thus be harming her :( She then went off and checked with my uncle (retired GP) who told her that breastmilk was a good thing to give a puking baby, so she came back and apologised. I thought it was all okay.
This morning she's had another go at me for bfing, though I think her stance now is that I shouldn't give DD anything at all, but again I am prolonging the illness and making things worse for DD by my insistence on bfing 
I'm now back at home as I can't deal with being attacked and undermined as well as worrying about DD. I am not forcing bfing on her but she has always been a boobfiend and obviously she is keen to bfeed at the moment as she doesn't feel too good.
Should I be trying to refuse her anything at all by mouth for six hours as my mum insists? I am concerned about her becoming dehydrated as much as anything - she wasn't throwing up huge amounts of liquid yesterday but did have some very light nappies.
TIA :)