Thanks for your replies ladies. DH took her to the Dr at around 5pm and basically they said there wasn't anything they could do - she didn't have a fever etc so we just had to watch her.
Overnight she had a bit of a fever - just under 38 and threw up a little again and we gave her more water.... poor thing is just so thirsty and hungry and we feel so bad taking it off her but she would drink the whole water bottle if we let her.
I might go back to our GP today because DH took her to an After hours clinic - they were good but I just don't want to risk it. Poor little poppet. She slept with us most of the night and was pretty miserable.
Her fever seems to have dropped a bit today so that's a relief too. Thanks again and will update when I can.