Vertigo  is when you suddenly feel lightheaded and dizzy, often triggered when you make sudden movements with your head. Usually, an attack lasts only for a few seconds or can be longer. Symptoms are mostly mild and shouldn’t interfere with normal living, but if you suffer severe vertigo, symptoms can be recurring and can last for several days or weeks. The latter type of vertigo can affect normal living because of its recurring nature.
Vertigo is commonly used to describe the fear of heights, but it is nothing of such. The medical term for a fear of heights and the dizziness triggered from looking down from a high place is known as acrophobia.