Its the first time its happened but not last night but the night before I had a dream in which a person in the dream called back to another dream. What? Right. It freaked the shit out of me. In the dream I even paused for a moment and thought about it. It didn't occur to me that I was dreaming though, it just felt like I may have had this moment another day.
I wake up and realize this and was just amazed by it. It was literally me having a dream weeks back then dreaming that day and that person connects them as if it was concurrent or a few days lapsed in that dream scenario. Totally a "flux in the matrix" moment.