probably my biggest fear is being cut. not sure what it is called, couldn't find the name.
it is not a fear of injury, because it specifically applies to blades. the mere thought of being cut strikes fear into my heart. puncture wounds and bullet wounds do not have the same effect, though that is not to say i am 100% unaffected by guns and the like. just nothing scares me quite like a blade.
and heights, though it only applies when im on a platform of some sort that is supposed to be static. probably because my mind keeps telling me to jump to see what its like to fall.
and spiders, though only the big fuckers that look like a hand, like trapdoor spiders and such.
and the dark, because of horror movie commercials (never seen a movie), and minecraft.
Edit: i forgot this one, i am also afraid of any body of water deep enough i cannot see the bottom, because my imagination keeps making me see a giant fucking shark or octopus or whale or a naga or a pissed of water god or something coming out of nowhere and eating me/grabbing me/mutilating me/slicing my balls of/pulling me down into the deeps by the leg etc.