I can hear a bug in my room. I can't see it because it's dark and I'm in bed, but I can hear it.
It sounds like it's flying into something over and over again. I don't know if it's trying to get in or out, but there's definitely a bug in my room.
I turn my phone on and shine it at the noise, but just then I feel a tickle on my ear. I swipe at it with the phone, but there's nothing there.
I'm not afraid of bugs, but the sound is keeping me awake. Maybe it will bite me all over so when I wake up I'm covered in red welts. Maybe it will crawl into my mouth while I sleep and lay eggs. Maybe it will never stop making noise and I will never be able to sleep again.
As soon as I stand up to investigate the noise goes away, but when I lie back down it starts again. It's really starting to bug me.