Vertigo

I had vertigo bad as a result of a concussion that I suffered in a workplace accident. It came on quickly as soon as I would lay down, the room would spin immediately and not stop until I was able to stand, usually with some difficulty. I spoke with my Dr. at the time and he explained it was probably due to the fluid in the inner ear being dislodged as a result of the fall I had. He described a procedure that may resolve it, and gave me a printed set of instructions to follow. I tried it as soon as I got home and it has not been an issue since.
I will try to describe what I did:
Lie down on the side that causes the reaction, then slowly roll completely over a full 360 degree rotation, this should rebalance the fluid, if this is what is causing your issue.