dream or obnoxious spirit?

I have been having this "dream"(and so has my friend) for years about something or someone I can't see that keeps poking me in the ribs,and just plain GRABBING me just for the sake of TOUCHING me I think,and I'm ALWAYS paralyzed.  I can't fight off whatever keeps touching me. I can feel my muscles HURTING from trying to move.  it's like it only wants to grab just to keep me from moving coz I can't move when it touches me. it will just grab me then hold me. it doesn't move me anywhere, it doesn't make any sound whatsoever,it doesn't attack me really..not in the violent sense that I'd think a demon would do. I just don't get it. why has it been bothering me for all these years? what does it want? I've been calling it a bad dream all this time,but why do I keep having it? why does it attack me only at night when I'm in the dark? when I sleep w/the light on or in the day time,I have no issues. It's y I stay up all night. This is also the ONLY "dream" I keep having years and years later,  I can't see what's attacking me,and I can't move to fight it off. Did I mention that I can barely talk? I think I'm starting to get more control of my voice now. In fact, I end up talking in my sleep. I don't think I do that when I'm actually dreaming. I am always wherever I'm currently sleeping(for instance, my room) when this happens.  I do escape when I wake up. I don't sense a presence or anything paranormal at all,but I wonder what the HELL it is?!  I keep wondering if maybe some type of "spirit" is really annoying me all the time? I can't anymore think of a logical explanation for what I'm experiencing..especially since my friend at least 1 other person gets these "dreams" too. =/