Not to be a know-it-all, but technically fear of heights is not Vertigo, its called Acrophobia. Related to CSA? I don't know, but anything's possible in our F-ed up world.

Vertigo is a malfunction of the balance mechanism of the inner ear, which produces a sensation of spinning and falling through space. I had an attack of it a month ago, and it totally disabled me for three days, until it finally passed.

Jude
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"I get up, and nothing gets me down.
You got it tough. I've seen the toughest around.
And I know, baby, just how you feel.
You've got to roll with the punches to get to what's real"
Van Halen