Acrophobia

Acrophobia (from the Greek: ἄκρον, ákron, meaning "peak, summit, edge" and φόβος, phóbos, "fear") is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up. It belongs to a category of specific phobias, called space and motion discomfort, that share both similar etiology and options for treatment.

Most people experience a degree of natural fear when exposed to heights, known as the fear of falling. On the other hand, those who have little fear of such exposure are said to have a head for heights. A head for heights is needed by those hiking or climbing in mountainous terrain and also in certain jobs e.g. steeplejacks.

Acrophobia sufferers can experience a panic attack in a high place and become too agitated to get themselves down safely. Between 2 and 5 percent of the general population suffer from acrophobia, with twice as many women affected as men.

"Vertigo" is often used (incorrectly) to describe a fear of heights, but it is more accurately a spinning sensation that occurs when one is not actually spinning. It can be triggered by looking down from a high place, or by looking straight up at a high place or tall object, but this alone does not describe vertigo. True vertigo can be triggered by almost any type of movement (e.g. standing up, sitting down, walking) or change in visual perspective (e.g. squatting down, walking up or down stairs, looking out of the window of a moving car or train). Vertigo is qualified as height vertigo when referring to dizziness triggered by heights.

Read more...https://en.wikipedia.org/wiki/Acrophobia

Resources
Rachael Eccles: Overcome Fear of Heights, Acrophobia, Self Hypnosis, Hypnotherapy CD: Music http://tipsandsteps.com/shortlink/93