I didnte start having those until recently. I think its from the amount of stress I've had thrown at me latley. But my worst one (keep in mind I dont remember most of this) I woke up to go to work. I'm normally up at 4am so im pretty tired but I remember I had a dream about calling out of work. I woke up as if I were still in this dream. Apparently I rolled over woke up my boyfriend and told him I needed to call out of work. Somehow I made him upset...I'm not sure how i said it or what I did but eventually I convince my self to go. Next thing I know im awake and walking down my driveway. I have no memory of it.