My problem is: when i fall asleep, after 2-5 minutes i wake up like i just had a nightmare, scared and feeling like something is in my room(like a ghost) but no hallucinations and i can move freely. My biggest problem is that if i try to fall asleep after that i get terrifying chills down my spine non stop for +- 30seconds, and if i don t change my position then my ears start pulsing. The only way to stop this is to get up and walk a little or watch videos or something on my phone. It s very annoying and i would really like an explanation for this if there s any at all.