I've always had nightmares. I've never had one about diets, but I have been so scared that I woke myself up. I have a recurring nightmare about fire. It's always a variation on that theme. I've had nightmares where the house is on fire, my bed is on fire, my car is on fire...it's pretty scary. One night when I was younger, I was sleeping with my ceiling fan on. I dreamt that the ceiling fan began sparking and caught fire. I thought I heard the fire alarm and I bolted out of bed screaming, "FIRE! FIRE!" Everyone in the house got up to see what the commotion was about. That's when I finally woke up and realized I had dreamt the whole thing. I felt like an idiot, but I SWEAR, it felt SO REAL.