Vertigo is a symptom, not a diagnosis, and can be caused by loose rocks in the head
I often hear patients speak of vertigo as if it were some brilliant diagnosis made by a genius emergency room doctor. Just because it’s a foreign word, that doesn’t make it any more clever than if they’d been told they were dizzy.
In my native Sweden, there seems to be a domestic lay word for almost every disease.
The runner-up prize in my book goes to Fonstertittarsjukan, 'The Window Shoppers Disease', which we call intermittent claudication, usually caused by poor blood flow to the legs (people feel better if they stand still