I'm extremely terrified of needles. You can't even set down a bag of IV stuff onto the bed without me flying off and screaming/sobbing in terror. :| Oh, and I have a huge huge HUGE fear of spiders. I always have to make my dad kill them for me, or they get sprayed with a can of Raid. My fear of them is so bad that I won't walk into a room where the spider was killed for fear it will attack me or haunt me. ;o;
I have other fears, but those seem pretty much legit compared to my other more irrational fears.