I used to have a fear of the toilet when I was about 7.
Though, heights make me really dizzy and sick, and I really hate the dark, especially turning off the light then going to bed. The second I'm under the covers, I feel much safer.
I also have a very irrational fear of screamers. I am usually very tense when I watch dodgy videos. Also, clowns. I'm not sure why - they're fake smile or their creepy buckled trousers, just something about them is really, really creepy to me. And I'm really, really claustrophobic. I just can't stand being in a small room. And young children - especially if they're babies. I'm not sure why, but I just hate it. Not that I don't like them, it's just a weird fear of being around small children. Then again, it's probably just because I'm an irresponsible, lazy jackass who isn't good with children.