I'm 15, and I don't know how to say this, so I'll try the best I can.
Sometimes I'll be laying down in my bed, and I'll just be resting trying to sleep without being even half asleep or anything, and suddenly in my head I'll get a feeling in my head and it wakes me up. Inside my head will feel cold and I'll be wide awake, and tired at the same time. I don't think it is me just getting woken up out of some near half-asleep thing, because it happens a lot and has a different feel.
And sometimes I'll be saying something or typing something like this post, and suddenly I'll forget what I was just thinking about! It's wierd, I can NEVER remember anything. I barely remember what I was just thinking about.
And sometimes I'll be laying down in my bed and I feel some wierd click, or pop inside my head. Not a psychical thing, but I hear something, and it wakes me up. Then my head feels wierd like there's some empty space in it.
Anyone know what's going on? Sorry for the bad description. Also, I'm 99% sure I'm depressed, if that helps anyone(they say you can't remember things as easy, though I'll be thinking something and then I'll suddenly stop and forget what I was thinking about).