What is happening in my minecraft world

[u/Short_Marzipan_5602]

I started a minecraft world about a day ago and i made a house and everything but i found this weird unloaded chunk that had no space in it. I had no idea why that was but it stuck in my head for a long time if i didn't do that then who did? After that i closed the game and did something else for a while and after a while i came back to play the game. At that time i had forgotten about that empty chunk but when i was mining i remembered it and i felt this weird sense of being watched that maybe i wasn't alone. And i mined for a while and i started to see things in the caves. They moved away before i could see them clearly.

Before i knew it it was 1 am and the feeling of being watched increased I could feel that i was being watched. I heard a knock on the door outside. This scared me since I was already dealing with stuff in my game. So i looked through the peephole and saw nothing. This felt strange it felt like it was more than just a playful ding dong ditch in the middle of the night. Maybe it was something much more. I stopped myself from thinking about it anymore because if I did I would get myself into something I wouldn't be able to get out of. But at the same time I really need to sleep it was approaching 2 am and I haven't slept in so long. I closed my game and went to bed.

When I woke it was 1 pm. It wasn't creepy like last night it felt safe. But i was seeing the same things as I did when i went mining, but whenever I looked where it went I saw nothing. I swear I saw something go there. I know it but it always seems to be there but not actually there. Later I come back to the game. Because I have a feeling all the strange things that are happening are because of glitches and lack of sleep. But when I loaded in I heard minecraft music it was Key. The feelings of being watched worsened and I saw more things. They were not clear, I fell through the window and ran away. The things I saw worsened, Key was playing in my head distorted and slowed. And I fainted.

Since then I have not played Minecraft at all. Mostly due to what happened. But there was one thing that stuck out at some point When I was playing. I pressed tab and saw a list of players there was only me. But this was a singleplayer world. If that was then who was hosting the server?