I hate spiders. It's embarrassing how afraid of them I am. There was one walking outside my car driver's side door window. I was afraid to get out the car. It was pathetic. lol
Let's just say it had 2 inch long fangs and huge eyes (yes, all 8 of them)!
The great news is that fears like that can be changed! (But only if you WANT to)
I remember watching two documentaries about 20 years ago. One was about creating, the other about removing fears. The one about creating showed people mentioning that a certain event happened in their life where they got scared by something. The end result was the creation of a certain connection/trigger that (when present) will start the fear response. But the strange thing is that the brain can connect fear to anything that is present (could be specific: spider, mouse, person or general concept: peers, authority figures).
Do you remember a specific scary event like that? Or could be that somebody present may have been scared and you "learned" it that way. It is also possible connect emotions if you experience them again and again in the same context.
An interesting type of fear: Fear of falling into the sky. http://www.socialanxietysupport.com/...98/index4.html
I suspect it is a learned fear because a few people mentioned that they only have issue with blue sky but are fine if it's cloudy. It makes sense if the "scary event" happened when the sky was blue and the brain connected fear to both the blue sky and flying up (e.g. one person mentions really disliking being thrown up as a child). But if the blue sky part of the "trigger condition" is not present, then there is no fear response. Another person mentions "learning" the fear about a year ago.
I've listed a few of my examples here for sounds: http://www.socialanxietysupport.com/...post1082692050
There's another issue which may or may not be fear related but also interesting: Hurts to look at corners - Social Anxiety Forum
There are many techniques that can completely remove the fear. If you're interested in changing it, I can list a few techniques that you can try yourself. There are also other techniques that work differently but those are best done with someone trained.