Ugh god I've had this a few times and it's just not nice. At first I didn't think I couldn't move, I thought there was something extremely heavy on me and it was in a dream.

Such a weird experience.

Yeah, I get it a lot. I hate it so much. Usually once I manage to force my arm to move or an eye to open I can move perfectly fine. It's like your brain wakes up before your body.

Once I had the reverse happen where my body woke up before my brain. I sat up in bed and everything was warping and discolored. There was a torch lamp in the room that had grey polka dots and was spinning in circles. The torch lamp really was there, but it didn't have polka dots and definitely couldn't spin. I also thought I was in a hallway with a bunch of wooden crates for some reason. It was great.

Wow, quite a few people here who've experienced this.

I did just now remember a particularly unpleasant one in which I thought the room was on fire. I was 17 at the time I believe.

That was probably my worst experience. I'm just glad I've never gotten any of the demonic kind :P

The sleep paralysis is mostly unpleasant, but it's a perfect way to Astral travel (=soul travel) or to experience an OBE (out-of-body-experience) or a lucid dream.

I have to work like a madman to get into the sleep-paralysis state by my own will (through deep meditation). I wish I could get them spontaneously like you guys!

To get an OBE (or to Astral travel), next time you realize you are in sleep paralysis, just "will" or force yourself out of our body! And you'll have the most amazing experience in your life....

I've had that before too. I feel i'm tripping or falling and i cant wake up, it's sometimes scary. But some one once told me it's not a bad thing. When we go to sleep our body temepratures start to decrease until it reaches a certain temperature. But sometimes that change can happen too fast that can cause our heart to stop, so the mind unconsciously gives you a picture that you tripped or that you're falling to trigger a jolt to your heart. If not it could be fatal.  This happens to alot of people really.

However the pasalysis part seems scary, i feel for you actually, why dont go see a doctor 

Sounds like youv taken a bit too much acid in your lifetime... seriously

I used to get sleep paralysis quite a bit. It always seemed to happen to me if it was too hot in my room. It went away, I think my last one was 5-6 years ago. It was definitely terrifying, but I never hallucinated. I always had complete awareness of what was going on around me, I just couldn't do anything about it. There's a group of people who believe that all of the alien abduction stories are actually just people suffering from sleep paralysis and having a similar hallucination. I'm glad I never imagined an anal probe!

I did once,
before,
but never again, after that, been years
I went back to sleep during that time

I don't know that someone have said it in this thread before but that feeling that you just describe do you get if your hearts stands still fur just a micro second; (It is normal).  Oh well thats what my doctor told me.

You should go to a doctor for the other symptoms;

One of my closest friends experiences this from time to time, it is apparently very uncommon and seems to occur in less than 5 % of the population.
Some refer to it as "Paralyptic Nerve Resonance" (freely translated from Norwegian mind you) and it is considered a sleeping disorder as far as I know (at least here in Norway).
Its very creepy and unnerving and is believed to be the culprit in the majority of "alien abuction" cases and similar events.
Some suffer greatly at the hands of this disorder and carry trauma from it throughout most of their lives, describing it as "a total state of helplessness".
Perhaps you should see your GP Okey? There are methods of dealing with it through medication or hypnosis as I understand it!