Dream #321

I have this same dream almost every time I take a nap or if I am on vacation sleeping in a car. I am sitting there and I completely conscious of my surroundings and I know that I am sleeping, but I can't wake up. I want to but I can't. I try to move my body but it won't allow it. Then sometimes I will wake up from that and think I have awoken only to realize when I actually do wake up that I was still asleep. I have had these dreams since I was 6 years old. They used to just be once I had entered a dream I had trouble waking up from it, but now I do not even enter a dream like state I just watch myself struggling to come back to reality. Does anyone know why I have these dreams?