Thread: Strange, extremely scary feeling.

I used to have these strange attacks when I was little and sick. These attacks usually started when I had about 40 C body temperature, and when sleeping and waking up while sick. By "attacks" I mean going completely insane, having extremely intense scary feelings (it's really hard to explain).
So, I remember staring at the TV before going to sleep. Then, the TV and me started to move away from each other. It seemed like an effect you can do with a camera (zoom out and walk forward, or zoom in and walk backwards at the same time). Then, I started to feel the intense feeling. The only thing I remember from that is the TV and my sister holding me. I seem to forget these, or remember parts of them.
It's the most scariest and intense feeling you could ever have, nothing more scarier. And when I have these, every sound seems extremely loud, a whisper sounds like an explosion, but I never hallucinated. I start to go insane and be extremely confused.
The reason I posted this is I wanna know what they are, and has anyone ever had this? And also, I sometimes get these feelings when I'm trying to sleep, to make it go away, I just have to open my eyes really widely and close them and go back to sleep. And another reason to say hi.
I know this sounds strange, but please share your experiences.