I'm not talking about the fear that the guy behind you on the sidewalk might be following you, or the fear that you should definitely not have given that person your number, because those are totally rational fears. I'm talking the out-there stuff that you generally don't say out loud to other people because they will maybe think that you're crazy.
I'll start: When I get up to pee in the middle of the night, I never, EVER look in the mirror because I'm afraid the reflection won't be mine. The bathroom is usually just lit with a nightlight, I never bother to put on my glasses, and I'm terrified of leaning into the mirror to focus and seeing a face I don't recognize looking back. (That picture at the top, which I found by Googling "scary mirror," scares the bejeezus out of me.) No idea where I picked it up, but I will never look in a mirror in a dimly lit room. Just to be safe.
What about you guys? What do you do, or avoid doing, or spend way too much time thinking about even though it does not make any logical sense? Please tell me I'm not alone in these little rituals of irrational fear.