It started out as happening ever-so often, but now i'm having this same dream a couple of times a month to a couple of times a week. I'll be having a normal dream of no significance, then all the sudden i'll hear a loud noise, or something along those lines, and i get scared, so i wake up into another dream. Because i'm so scared, I try running out of the room or screaming, but i can't. I sink into the floor, or my legs won't move, or i have no voice. At this point, i know that i'm dreaming, so i have to try and wake myself up. When i finally really do wake up, i can't stop shaking. It always happens only a few minutes after i fall asleep and lasts approximately half an hour. What do you think this means? It's been happening more and more lately, and it's pretty discomforting.