It's hard to explain what vertigo feels like to someone who's never experienced it, but I'll give it a shot. Earlier today my brain was telling me the room was tilting at a 45-degree angle while at the same time my eyes were insisting that it wasn't. That disconnect between my brain and my eyes is what makes me feel dizzy and sick. I've had to lie down, close my eyes and just let my brain insist that my world was tumbling from the safety of my own bed. Eventually, I have faith, this will pass and everything will line up again as it did before.
Meanwhile, I think I could use some Dramamine.