I have Nightmare Disorder (ND). This means that I constantly have nightmares. My ND is related to my Insomnia, but I've known about this longer. I rarely have good dreams. And while not all of my nightmares are horrific, they are all bad and can be classified as a nightmare. All my dreams are vivid. If I have a good dream, I often can't remember it. I can almost always remember my nightmares. Since I wake up many times in the night, I often have more than one nightmare in one night. And sometimes, I find that my dreams are leaving physical marks and feelings. It can be terrifying... but you learn to deal with it. I write my nightmares down... doesn't make the ND go away, and it doesn't make it any less scary... but it does make for good stories and proof!