this machine will not communicate

To know that there is a completely rational explanation for those nights when I wake up scared sh*tless and not knowing why, heart pounding, short of breath, unable to move. Usually I get the feeling of the bed shaking like it's an earthquake or someone is shaking the mattress and I'm frozen for a bit then when I can move it is most likely to grip the edges of the mattress. When you mentioned that I was like O.o holy crap so I'm not nuts?! I hate waking up thinking I heard someone shout my name or knock on my door except the entire house is silent when I'm jolted awake so I lay still and silent waiting to hear if someone really did call my name or knock. I find it's worse if I'm working wonky hours, like overnights or the really early or late shifts. So, *bows* thank you for posting and shedding some light.