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Rabies does not have a typical look. It's so rare, that the handful of cases reported per year will have different presentations. It can look manic where the dog is aggressive and drooling and fractious. It can also have a dumb form where the dog is lethargic and minimally responsive. Either way, they can have seizures. I think rabies is a thought, but it's extremely unlikely.
The more common causes of neurologic signs would be epilepsy in dogs 1-5 years of age or a brain tumor in dogs > 8 years of age. In that middle grey zone, it could be either one or an infection (encephalitis) or even a condition called Vestibular that looks like Vertigo in people.
I would have a good neuro exam done by a vet and then start treatment based on the localization and severity.