yes it's a real thing, I have escalaphobia and thus slight acrophobia. I get scared of going down escalators, especially escalators which stem a longer distance than usual. The weird thing is I'm not scared of heights at all, I'm only scared of long down escalators because of the amount of dumbasses I've seen fall down them and injure themselves.
I'm fine with insects as long as they do not invade my personal space and buzz around in my face purposefully. If anything I like spiders because they kill the insects I hate the most - flies.