For quite a while now I've been having dreams that I forget as soon as I wake up... And then, suddenly, at random moments, I realise that what I'm doing was in a dream...
Yesterday, I was reading a book, and I suddenly said, 'Oh my God, this was in my dream.' and my friend looked at me and started doing this weird dance thing, and asked, 'was this in your dream, too?' And it was! It's so weird!
Anyone else have these types of dreams as well? I'm sure it's not just me... right?

Its a sense of deja-vu. Basically, when we are in the rem sleep stage, the stage where most dreams occur, our brain retains everything we learnt or saw during the previous hours we were awake and when we dream, we can often see subtle or very direct references to what we saw during the day. for example, say we see a red light during the day or Mario from Super Mario, we'll either see them during our dreams as they were in real life, or something in our dream will represent them in some way, so maybe we'll see other colored lights, other Nintendo characters, or a lot of things we see in our dreams are colored red.

In correlation with this, our unconsious mind is, in a way, capable of seeing into the future by accurately prediction through the things we do daily. If you have a reasonably solid schedule that rarely changes or something you do often, your unconscious mind will use that and can make accurate predictions of what could happen in the future.

Popular opinion suggests that dreaming, the rem stage of sleep and the unconscious mind are linked and it's not much of a stretch to think and say so. In result you can come to experience future-sight, or rather very accurate predictions in dreaming, due to your unconscious mind retaining things from what has happened during your waking hours.

source: I'm a Psych student at university. This is the general idea and I'm 90% sure it's correct, but there could be particulars I haven't considered.

I've had experiences like these before, and personally, I think conversely that I might be doing things because I dreamed them. I mean if I've already dreamed them and it's sitting in the back of my subconscious, when the same precursor events reoccur irl, then my automatic response is to repeat my actions.

On a different note, >>2 has a very good explanation of the psych side of things, but just to expand on what I know, dreams are often very unclear to our waking minds, whether it be due to the illogical flow of them, the massive amount of information in them, or something entirely different. When we have a deja vu or deja vu like moment, as we experience a sensory mismatch, we vastly desire to know where this has occurred previously, so we can ascribe them to vague (or even descriptive) elements of our dreams.

That's all I have on it. I may be no expert (trylouu is far more educated in these matters that I), but I hope this will help you in your research. Also, it's not impossible that you are psychic, but if you are, I expect to see you win the million dollar challenge ;)

If you're more interested in Deja Vu, there's an awesome vsauce video over it.

>>1 I've experienced the same things. I have begun to wonder if >>2 is correct after all. It does certainly seem possible and brings something different to the table on how to discuss/dissect the issue. Dreams like that for me are very common and I always get the sense of Deja Vu, and shock at the fact that I dreamt it. Of course one can never truly understand their mind, much less the unconscious one so I take all I dream with a pinch of salt and a shot of curiosity.

>>3>>4 Thanks for playing up my understanding of dreams, much appreciated

Oh my! This happens to me! It's like, at a random moment everything will align perfectly and I'll remember it being in a dream. The déjà feeling and everything. I'm kinda relieved that there's some sort of logical explanation for it and I'm not the only one who gets this.

Thanks for posting this ^^

I have been having the same dreams for years now, others in my family have them too. But I'm not so sure it's just my subconcious working with the data my brain has from my routines in every day life. I had this dream, about three years ago about me playing volleyball and this girl in a pink shirt running next to me in the field. At the time, I had zero interest in volleyball, but last year I started training and the same thing I saw in my dream happened, it was exactly same, with the pink shirt and everything. Could my subconcious have predicted so far ahead? Even though I had no interest in sports when I had this dream?