What symptoms are you seeing? Are you seeing one sided weakness? Facial slackening? Drooling? Walking in circles?
If so, your pet might be suffering from vestibular disease instead of a stroke. It's very common. It's a disease of the inner ear.
It is treatable with antibiotics so be sure and see your vet as soon as you can for a diagnosis and to discuss your treatment options.
You can read more about vestibular disease here:
http://www.marvistavet.com/html/body_vestibular_disease.html
Then let me know if you still have questions.
