I completely understand and can almost definitely say its sleep deprivation. How do I know this? Because I haven't slept more than 4 hours straight in probably 5 or 6 years now. So I'm pretty much like a zombie all the time. Don't drink alcohol, don't take sleeping pills, don't smoke weed, or any other form of drugs; they won't work and they'll make u feel worse. It could be sleep apnea or some other thing that is messing up your sleep. If u have insurance, go to the dr. get a bunch of blood work done and a sleep study. Before u get the sleep study done, find out what the requirements are to get a diagnosis. When I got my sleep study done back in 2006, they couldn't give me a proper diagnosis because they said I needed to sleep 5 straight hours which I did not do, DUH! If I could do that I wouldn't need a damn sleep study! lol. But seriously, take care of this asap, u dont wna turn out like me. I am in a daze 100% of the time, always tired, completely detached from reality, as in I am not sure if this is all real. My entire life is on auto pilot, I basically do stuff because I'm supposed to, not because I want to. But anyway, this is about your problem, not mine. But this **** is serious, so please get to a dr. ASAP!