Thanks I will keep an eye on her, if shes no better by morning I will take her to see the vet.

She usually gets on really well with my cat too but she growled and barked at him earlier because she thought he was stealing her biscuits! Which shocked me a bit as shes never guarded her food before. I am hoping its just hormonal and shes coming into season.

Then again she has always eaten grass etc so am wondering if she ate anything that didnt agree with her.