Phobias are different to fears. Just cause they sound silly doesn't mean they don't exist. I have a phobia of robots, doesn't mean i'm silly or that people should laugh at me. This isn't really funny to me. It sounds silly but at the end of the day, it's a phobia. Some people have a phobia of breathing etc, having phobias of things you can't avoid would be horrible. Pickles isn't so bad cause they're not everywhere.