Feeling help: What causes that feeling on the back of your neck when you watch a creepy movie? - Help.com

LSD flashback?

Adrenaline, I believe.

Astro: how reasonable of you ;)

Or it could just be spiders crawling all over your neck looking for a place to lay their eggs. Whichever comes first.

If you get a chance to ever see “The Tingler” with Vincent Price (old movie) it will explain what that feeling is……..

Vincent Price! Ah that man was amazing.

I would say it’s a reaction to fear.
The body very often tries to move in the opposite direction of
a stress.
this is why depressing drugs such as alcohol initially give you a good feeling
but later on make you depressed.
So your body is experiencing fear and the natural reaction
to this is to try to send a protective signaling device
that you can pay attention to.

Spiders. Little, bitsy, invisible spiders.

Astro-Man wrote:
Or it could just be spiders crawling all over your neck looking for a place to lay their eggs. Whichever comes first.

theresape wrote:
Spiders. Little, bitsy, invisible spiders.

Hivemind.