Welcome to pets.ca, Sierra'sMommy. I'm sorry to hear your pup isn't feeling so well though. If it were me, I'd most likely be asking for a referral to a specialist if our regular vet couldn't determine what was going on. I'm not comfortable with treating symptoms without knowing what I'm dealing with.
Please let us know how your girl continues to do. Lots of
that a diagnosis and treatment can be found asap.