
My sisters boxer bith had a spate of fits,no cause could be found so it was put down to the evry bad vaginal infection she had (she was incredibly ill, they thought it was pyo to start with), once the infection has cleared (icluding a spey when she was stable enough), the fits stopped.
I don't have any personal experience of fitting dogs, and have not kept bitches myself, but I'm sure others will be able to offer some advice, it would help if you could give more info.
Is your girl speyed?
Has the vet actually examined her or given you advice over the phone?
Is this the bitch that you posted about in Feb. that had been mated?
I would personally make sure the vet has actually examined her, if they haven't allready done so. Also have a think about things she may have possibly been exposed to/ingested that could cause an allergic reaction/poisening (including chocolate).