I'm deathly afraid of Spiders!! also heights! I am the biggest chicken when it comes to the smallest spider. I have no problem with teranchulas I don't have a problem with, but the tiny ones I do. It's weird.
Now, heights. I freak out when I'm on a ferris wheel. I can however, do roller coasters and I love them. I always scream but I always end up getting back on the ride. I rode Screamin California at California Adventure about 5 times! It was awesome. But I freak out when I'm on a roof and can't get down, ferris wheels, standing on a skinny pier looking down, and well, so on.