Okay, I've been thinking about this, and not all of my experiences have been terrible.

Years ago, during what I'm now pretty sure was a hypomanic episode, I wrote an enormous book in two months, and it was one of the best, most beautiful and euphoric experiences of my life. Those two months everything had this hazy, golden glow to it, and this book was going to be the best I had ever written.

Crashed hard afterwards, but that book has a special place in my heart. One of the best time periods of my life (short as it was!).