Does anyone else take this? I've been on it for a little over three years now and it's been working great. But my sister was over this past weekend and said I came out into the living room and talked to her at 3am. I had no idea I sleep walked! I don't know if this is common, or has even happened regularly since I had lived alone for the past couple of years. I'm also on Pristiq which I started taking this summer.