What causes fear of heights?
Often times there is no identifying cause for a fear of heights. A lot of people feel that there are certain phobias that are evolutionary hangovers. Heights is one of them. There is an evolutionary benefit to avoiding extreme heights and cliff edges. This is similar to fears of snakes and spiders and things like that. Anyways, if it is really bothering you, there are several therapy techniques to help alleviate phobias like this. You should be able to find a professional in your area who can help you with this.