Oh sleep where arth thou

Can't sleep. You can take your pick of the reasons why. Could it be the fact that I've to get up in the morning and put on a face and go to work, or is it the fact that I'm still waiting on the police to decide whether they will prosecute him or is it the one million things swimming around my head constantly. Everybody says I look pale or that I've lost weight, my eyes have shrunk into my head and I have a pain in my face from clenching my jaw without knowing it. I'm so tired. How did this happen?