I'm not sure why, but I feel like a lack of sleep has really heightened my paranoia... A bathroom is right across the hall, and the hall leads to the living room and kitchen, where the lights are turned off so it's really dark. Sometimes I really need to use the bathroom, so I quietly kinda sprint over so I don't have to see the darkness/be out in the open for too long. But in my room, in dark corners, I imagine creepy monsters... It's more of a thing that happened in the past, but I could probably imagine one again if I thought about it enough.