I also can't help but think it's not a coincidence that I have these dreams more often the more I question reality.

Dreams are often very much a way of us trying to process information and memories. The more you question anything, the more likely you are to dream about it.

A word of caution, the mind is susceptible to suggestion. I used to watch a whole lot of ghost hunting TV show boxsets and paranormal movies. Guess what my sleep deprivation hallucinations became. An old problem of mine was seeing ghosts, clear as day. Normally after too many stimulants, but the point is I had managed to influence my subconscious to conjure these images.