RE: what's happening to me?
Sounds like a phenomena called "sleep paralysis" to me. Even though Im open minded about the paranormal, Ive read a lot about this and Im sure its not a paranormal experience, even though it can be terrifying.
I get it a lot when Im trying to go to sleep and Im worried about things or their is a lot on my mind.
I hear a noise like some is shaking what can only be described as a tray of gravel in my head , then, if I dont shake myself out of it I feel myself becoming paralysed and hear a horrible high pitched screaming in my ears and if I dare to let myself sink deeper I feel my whole body shaking and shuddering. It truly is a horrible experience but basically I think its just your mind and body not shutting down together properly when you start to fall asleep.
Type " sleep paralysis" into the into the internet and Im sure it will describe your symptoms.