When my now-healthy [yay!], 14 year old border collie came down with vestibular disease back in January, my first thought was that she'd had a stroke and was at death's door. It's a common misconception when a dog has vestibular; here's the story of homeless veteran Bob Mikolasko and his dog Kaiser. Click on the video to play:
Although the closest any of the news reports come to describing the dog's illness is "vertigo," it looks to me [and I am so not a vet!] like vestibular. Full story here, in the Los Angeles Times.
[Hat tip to John over at For Your Entertainment.]