This is almost exactly how it is for me as well. I've experienced this 50+ times, the feeling of complete or almost complete paralysis. I make a great effort to

This is almost exactly how it is for me as well. I've experienced this 50+ times, the feeling of complete or almost complete paralysis. I make a great effort to move and can feel my heart racing and heat in my face from panic and exertion. I can see my immediate surroundings; if the sun is up I can tell it's daytime. Although my eyes are open and aware, I'm not quite fully alert. Sometimes there are hints of hallucinations like the feeling that a shadowy figure is approaching my bed, and it's scary, but most often I'm just aware that I'm paralyzed. As a child I learned that if I can force a limb to move slowly, I will usually jerk myself fully awake. About 25% of the time I can calm myself down and fall back to sleep.