Trucks I have a fear of only if I'm biking or walking. The way they zoom past you and you feel the hot air and grit rush pass you, and how I kind of "sway" after it passes me.
My own personal fears? Oh, I have plenty. You're definately not the only one with strange fears.
I have a fear of beetle-like insects, and worms/worm-like things. They just scare me immensely for an unknown reason that I'm trying to find an answer to. Every night before I go to bed in the summer, I strip off all the blankets and bedsheets and pillowcases, and make sure my bed is bug-free. I think I'm passing phobia and into paranoia...
I have a fear of drowning. I don't know where this comes from, but I absolutely
hate open water. When my family went to the beach two years ago, I don't remember going into the water at all. I just spent the entire time in the sand, much to my parent's confusion. I never told anyone this, but always made up excuses whenever my friends invite me to the pool. I can't swim either, so that might play a role in my phobia. ^_^
I also have a fear of those old porclean dolls. It's horrible, because my aunt has an attic full of them. I just hate how they sit there, smiling at you, with those unblinking glassy eyes.. Unexplained fear. I simply hate them.
Another fear - knives. I
cannot handle knives whatsoever. It doesn't matter if it's plastic or metal, I won't come anywhere near one. I don't know what caused this fear, but I also have a fear of axes which is also unexplained. Everytime I see an axe or knife, I get this horrible gut-feeling that tells me to back away as far as I possibly can. And I don't hesitate to follow this feeling through
Again, everyone has a fear of something. You don't have a stupid fear, it's completely rational.