Judecorp.

Have you shifted anything in your day-to-day routine, like, did you used to walk a little more but now you drive, or something? The reason I'm asking is, I had a similar problem, only I would wake up and remain awake, or be unable to fall asleep. I did some "research" on the internets and read a bunch of stuff that says that exercising in the morning (especially as opposed to the evening) really helps--exercise can be a walk, or something more strenuous. I also read some kooky hippie stuff about "the first thing you should do in the morning is go outside and turn your face toward the sun for fifteen minutes." Not wanting to do the latter and freeze my ass off, I compromised by (a) moving my workouts to the morning rather than after work and (b) opening my drapes first thing after I wake up.