Vertigo is NOT dizzyness. It is the halucination of movement. The largest number of people with true vertigo are effected by BPPV. It is due to misplaced canalinths (otochondria, crystals) in the balance system of the inner ear, they are giving false messages to the brain about where the head is positioned.
The condition is characterised by intermittent attacks of vertigo associated with a particular head movement, often the word “EVERYTIME” is the key word. It might happen when lying down, getting up, turing to one side, bending over a basin cleaning teeth, turning to check traffic while driving etc. The attacks last only a few seconds and are not associated with any other symptoms.
Your GP may refer you to an ENT specialist, who will, most often, be able to successfully reposition the canalinths – often in one visit.