
Hi Adam,
I think your vet really has to be your best - no, make that *only* - bet here because repeated or chronic bouts of sickness can have so many possible reasons behind them :(
As for the chips - I think they could in
some circumstances cause vomitting etc but IME they would
not cause her to have a high temperature. As your vet has said, that is more likely to be a reaction to infection etc.
Have you arranged to take her back in?
regards, Teri