I've always thought things looked like they're moving in the dark. Not only that, but they also change shape.
Example: A few nights ago I was laying(lying?) on the sofa at night and there was a box on the shelf. If I looked straight at it, it looked like it was fidgeting/jerking around and extremely blurry. If I looked away from it, it'd change shape and it looked like a person. The "person" walked back and forth on the shelf and after a few seconds reappeared where the real box was. It was still very blurry and somewhat distorted/shaky but it did resemble a person and it did move around.
Is this a thing that everyone has or is this some sort of weird thing only I have? I'm actually kind of afraid to post this in case it's something perfectly normal and I'll look like an idiot, but it just doesn't seem right to me. I'm sorry for wasting your time if this is a normal, everyday(night) thing. And no I am not dreaming when this happens, I'm completely awake and conscious. I don't think it's sleep paralysis because I can move freely and the things are so blurry/vague, but I could be wrong.