It must be something about the transition from long to short days, because the incredible fatigue and sleepiness is gone now. Seems like it's confined to November and doesn't carry into Decemeber That's why I'm sure it's not SAD, it's more like a shock to the body and body trying to adjust to it. I'm not able to right now, because I'm having to do travel trips throughout the day in my car, but hopefully I will be done with that and I would like to try riding my bike again. The dark is the hard part, but I think the ride in the cold will be exhilarating and feel good.