Can't sleep for some reason

It is 4 a.m. and I am still awake. Why?!?! I know that there is something on my mind but I can not figure it out. I have solutions to everything that has been bothering me yet there is still something there. I wish I knew what it was. There has got to be something missing. Did I overlook something? Is there some simple little detail that I forgot about? Hell I thought writing this post would help me figure it out, guess I was wrong. Going to try to get some sleep. Maybe it will come to me later, I hope.