As far back as I can remember I've occasionally had very vivid dreams that seem significantly more important than the events of real life, and also more real.
This was not much of an issue when I was younger, or if it was I can't remember, but in the past couple of years I'll have episodes where I can't be woken by any sort of alarm and become combative (or simply experience barely-controllable rage and hostility) if another person tries to wake me. In addition, when they do successfully wake me, I either fall right back asleep or am weak and lethargic for 1-12 hours afterwards, unable to even open water bottles by myself, and can't think about anything but the dreams I had or going back to sleep or the possible sleep disorder I might have.
When I lived alone there were days when I would sleep 20 hours out of the day, experiencing complex, vivid dreams the entire time. I would periodically wake up and literally struggle to reclaim reality, before I felt sucked back down into sleep by the dream, which would resume from where it left off. I wake up exhausted and preoccupied with the plots of dreams that sometimes feel like they span years - at times I've lived out entire lifetimes as someone else, or as myself in different realities. The plots which were incohesive and having no basis in reality when I was younger, are now growing more and more related to mundane events of daily life, though always with some underlying subplot that I am dealing with. They are generally unpleasant in nature, but not nightmarish, focusing on moderate emotional trauma.
In recent months the dreams have been increasing in frequency, and have reached the point where I have between 2 and 6 (that I can remember) a night, and am completely pre-occupied with sleep at all times. I'm either sleeping, struggling to wake up, struggling to stay awake, or attempting to accommodate severe weakness and an inability to care or think about anything. I am growing increasingly distant with my own identity, identifying more with my time spent unconscious than my actual life. I find it difficult to understand that my relationships or classes at college matter, and instead just struggle to make it through every day until I crawl into bed. I can usually regain perspective after an hour or so (this time period is lengthening as well) of struggling, however I don't genuinely care about the details of my life, and am constantly mind numbingly exhausted.

The hold of these dreams on me has always been very strong, and the influence my sense of reality greatly. There was a period a year ago when I ended a highly tumultuous relationship with my boyfriend of three years. The situation was very complicated and traumatizing, and I ended up with a mild case of PTSD concerning the events, which eventually resolved itself. A couple months later, I began having dreams every night that we had gotten back together and were happily in bed with each other while I was in my bed alone, and would wake alone wondering where he was and even go so far as to call him, having forgotten our entire break-up. Given that the break-up was my idea, and that in my waking hours I experienced little emotional distress over the issue, this was very odd.

At present I am dreaming through classes, social engagements, obligations, dr's appointments, and am constantly so exhausted that it feels like my life is the dream now, and my dreams the reality. I sleep for 7-16 hours at a time and have to be woken each time by my current boyfriend, who I then feel irrationally furious with and then mildly irritated by for hours afterward. In fact, I'm avoiding all social contact and find almost everyone to be tiresome and mildly irritating.