I usually "think" myself to sleep. I pick a subject and keep going with it until I'm asleep. It didn't work that well this morning, though, when I tried going back to sleep after only 4 hours of sleep. As I fell into a deeper sleep, I would be bombarded by this rapid succession of random, unconnected thoughts and as I was "thinking" myself to sleep I kept trying to make sense of them all, but I think I couldn't due to the random, disconnected nature of the thoughts, which resulted in aggravation and panic, and immediately I woke back up! The rapid succession of thoughts stopped after waking up. I then tried to go back to sleep and the same thing happened again, and I didn't feel too good after that. I had to call in at work today (with approved sick time I have remaining) and I was finally able to get a few more hours of sleep.
The first time I tried to sleep, some of the images included the Zelda II: Link's Adventure video game and somebody wearing a black cloak and my mind tried to reconcile all this, but couldn't.
The second time, I can remember only one image: Treno from Final Fantasy IX, where I also kept changing my position and perspective in the town. Again, I tried to reconcile the disparate images, but couldn't.
The last time I had this issue was back in May, when within a few days my body started feeling like it wasn't put together right (like the way my arms were put in their sockets was just a little off) and I started thinking everybody was always watching me, all eyes looked to be on me. Because of this, I think it would be best to take the day off and reduce my level of stress.
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"You have a responsibility to consider all sides of a problem and a responsibility to make a judgment and a responsibility to care for all involved." --Ian Danskin