I get scary 'visions' when i do certain actions

So, when it's really quiet at nighttime and I'm all alone, I start imagining weird things. I'm not sure how to explain it, so I'll give examples. Two days ago, the wind was blowing the stick part of the blind (the bit where you twist to 'close' it) so I held it together to stop it from moving. The moment it stopped, I had this sudden image that the stick started swinging around again, getting faster and hitting itself against the blind, and that gave me sudden chills and made me get out of there as soon as possible. Yesterday as I was looking at a dark empty room, I had an image again, and this time, there was a man wearing a mask and a dark cloak who stood at the end of the room, before sudden running at me, and once again, I ran to my room.

I'm not sure if anyone gets images like that when they do a certain action. I think I might have gotten these images when I was younger. My first dream was me surrounded by a bunch of mimes in a stair maze and falling off the stairs and onto the ground, I'm not entirely sure, but when something like that happens, I always have a feeling it's because of that dream.

Also, when I look at things that are too big for their size, such as the icons on a desktop being too big, or imagine myself falling onto the Earth or an object suddenly close to my face, my leg starts jerking or I get these chills. I think that those are related to the visions I get...

Anyways, can you tell me if it's natural to have thoughts like that of if its just me?