Headcase- potentially.

You know that thing when you can't concentrate, no matter how hard you try or what activity you pick? I've been wondering why that happens. 

I'm sure there are several factors in play, but one of the most significant things I've noticed is a faint tick tick tick at the back of my head. Almost like those annoying carpenters in your head when you have a hangover, but not quite painful. Not physically anyway. 

I think I've finally understand what the noise is. It's like a puzzle is going on in my head and there's a timer that's tick-tick-ticking. The funny thing is, most times I don't know what the puzzle is- could it be Unscramble or Chess or Angry Birds? I can't really tell- it's a hazy picture, as if it's a puzzle within a puzzle. First phase: figure out what kind of a game it is, and Phase Two- Then figure out how to solve it before that tick tick tick becomes a large TONG! and time's up. 

This is a TASK and really, I have no more to say on this subject, except that being this state makes me one of the most unproductive people I know. I'm literally useless during these times. It's like I'm sleep walking through my day/s.

Just wondering if someone else out there feels the same way, or if I'm just a potential headcase.