It's not a real phobia

more like I don't like them when there are too many of them. Worried that some get on me and bite me. I also don't like wasps and other biting insects

but you usually don't see hundreds or thousands of wasps and one wasp is ok, just annoying.
Interestingly, my dream about ants wasn't too disturbing. I just don't have nightmares anymore, I am too relaxed in my dream for that.
By epidemic, I mean that both I and Moonage had a dream about ants after reading about your dream about ants.
As Sivason said, it's just that - reading about it and our subconscious picking up things. I love noticing these little things.
Bookmarks