I had woken up from a just a perfectly normal dreams. I got up and got a glass of water to drink and went back to bed. I was then drifting back to sleep when suddenly I felt this sensations like how the blood around my body was rushing around my body extremely fast. I couldn't move and instantly the first thought that came into my mind was, "this must be sleep paralysis". I just kept calm, knowing that it's just a normal process. I just continued to lay there, with my eyes open, waiting for it to pass. I then see a black figure next to me shaking around. I ignore it but then I start to get freaked out and then suddenly the black thing disappears and I can move and talk again and I just lay there in fright until it's morning and got out of bed.

I have two questions about this:

1. How come I didn't fall asleep or wake up? It just happened. Shouldn't I have fallen asleep, wake up into SP, experience SP and then wake up from the SP? I had my eyes open the whole time. I didn't wake up in fright from a dream. It all took place in my bed in one episode. No falling asleep or waking up? Is this normal?

2. Even though I stayed calm, knowing perfectly well that it's just normal and yet automatically I started to get freak out? As if I had no control over it? Even after seeing the black figure, I was calm till a couple seconds later I just started to get freaked out for no reason. How do I not get freaked out?