A few days ago, when I was lying in my bathtub with my head underwater with my eyes closed. All of the sudden, through my eyelids, I could see the bathroom getting really dark, as if someone turned the lights off. I immediately opened my eyes and for a fraction of a second, I could see a dark shadow standing above me on my left side. I stood up instantly, shaking, only to see that the water in the bathtub has somehow turned a funny dark red color in the meantime. I was scared, tears falling down my cheeks, and couldn't sleep for the rest of the night.