Ok, so this has happened to me maybe six to eight times now, and it's incredibly, INCREDIBLY scary and creepy; it gives me the chills everytime i think about it. The first time something like it happened was when I was sleeping in the car, on the way home from a trip. Whilst "half-sleeping" like you always do in the car, I could notice the car stopping, and I don't really know what it was, but it was as if I could see, or atleast imagine, my mother walking out of the car to buy something from some guy. Whilst lying there in my seat, I was thinking like: "Okay, I'm gonna lean forward and look out the window" and as I thought that, it was as if I did it in my mind and just imagined me doing it, and as I imagined that I looked out the window, I saw my mother standing in front of a table, and behind that table there was this shopkeeper, but as I looked at him, he turned towards me and then it was as if my view "zoomed in" on his face, and everything became slow-motion and his face morphed into that of a wolf, and this weird turbine-buzzing kind of noise grew louder and louder and it was terrifying. Then I just woke up. And whilst just lying there I thought I was gonna look out the window to see what was REALLY going on, and I did, and there the EXACT SAME THING HAPPENED. And this thing reoccured like five times before I "actually" woke up!
It has happened a lot of times since then. It can be triggered by multiple things, like "thinking" of something, or just that a dream turns into this sensation / phenomena out of random. I think once or twice it has happened that the dream that I'm in just becomes darker and darker, like when you're light headed, or when a lucid dream is starting to fade away and you wake up. And I do wake up. But as I lie there in my bed, I can't really seem to move, then the same fucking scary turbine-buzzing noise comes as a crescendo and when I reaaally try to sit up, I manage, and as I'm trying, the turbine-buzzing noise gets weaker, and then I wake up. But as I try to sit up, the same turbine-buzzing noise comes like a crescendo again! If I just lie there and "let" the turbine-buzzing noise "get to me", everything just starts to shake and it becomes incredibly loud, and I start to get afraid that I might get some kind of weird thing where I die because my brain shuts down or something; like you see in movies maybe, so I try to stop it, and after a while I wake up again. But as I wake up, that turbine-buzzing noise comes back. And this pattern repeats 3-10 times, and it's extremely frightning. I try to scream, I try to do everything in my power to wake up. As I try my best to scream, I can hear some faint distant "moaning" like if I can hear my "real" body mumbling in its sleep.
In these phenomenas, I am 100% concious. I have exactly the same vision as I do in real life (not very sharp, but still not blurry enough for me to need glasses), and my room looks EXACTLY the same. The only difference between that and reality is that I'm 90% paralyzed and that buzzing noise / shaking.

One time that this happened, when I woke up, I think I woke up in a sitting position, I don't know really, I saw that to the left of me, the Giant Bunny Rabbit from Donnie Darko just sat there and looked at me. MAN that was freaky as shit.

And last night, my girlfriend was sleeping over at my place (in my bed, wrapped inside my arms), and I had one of these sensations / phenomenas, and when I finally DID wake up, I felt like waking her up and telling her about it, but I didn't really wanna wake her up and disturb her. So I lay down, and I could almost feel or hear that distinct buzzing noise, somewhere deep beneath me, and I let it "come" out of curiosity, and I got trapped in the same phenomena / sensation again! This time I was prepared though, so I tried all the stuff that possibly could affect my "real" body; shouting and moving around and stuff. I wanted to see if it really did affect my "real" body. But when I actually did wake up, she said she hadn't noticed anything, although that could have been because she had been sleeping.

Sorry if this post has been a tad too long, I just really had to get it out of my chest. I've never heard or read about anyone with the same thing. My friends say that it could be some weird kind of SP. I don't know.
If anyone has had a similiar experience, please tell me all the details!