Hello, for a second time I have that weird dream, I just laying in bed on my back and I feel that suddenly somebody grabs or touches my feet, after that I can feel that somebody walking on me from toes to head, back and forwards, in that case I can't move, I can't scream, I just feel footsteps on my whole body, and after the ,,ghost" get down from me I run away from room looking for help. What it could mean?