I would sleep walk frequently as a child. I've done it a few times as an adult. A few years ago I walked into the kitchen, opened the refrigerator, walked away leaving the doors open and went back to bed. My family watched it all happen and thought I was awake until I left the doors open (without eating). I have no memory of this happening. It's VERY scary. What if I would have left the house? I'm so sorry you are going through this. I would definately talk to your doctor and investigate the cause. It's actually very dangerous.