Hell, for all you know, you may already have it. See a psychiatrist and see if they diagnose you with something.
If either of your parents are bipolar, it is highly likely you may be as well, as bipolar disorder is highly hereditary (my mom is also bipolar).
I have bipolar disorder. One of the symptoms of bipolar disorder is having trouble sleeping. My medications for bipolar disorder greatly help with getting me to sleep.
I've seen him in pizza commercials (can't remember if it was Papa John's, Pizza Hut, or Domino's), The General, and Gold Bond.
The dude's making the most of his retirement, I guess.