Reality and sleep

Today for the first time ever I woke up and didn't know what was real. I dream a lot during sleep, even have lots of those 'false awakening' dreams (where you think you've woken but are still asleep), but I've never woken up and felt completely disassociated from reality before. I checked the time, brushed my teeth and took a shower but when all that was done I still wasn't sure if I was awake. Now it's 8.36 at night and I'm still very jittery and thoroughly unnerved. Everything feels unreal. I hate the feeling.

All I hear in my head is Air's 'Playground Love'. I can't decide if my sensory abilities feels like it's cheating or being cheated. I've slapped myself a couple times now but then I've slapped myself in dreams before. This would make a good entry in my dream journal if I actually kept one.