I stress about insomnia. Mostly, since I am not working I don't have to go to bed early because I don't have to get up early. I want to though but I've always had trouble falling asleep. Is your insomnia mostlly about "falling asleep" or "staying asleep?" Also, not being able to sleep is also a sign of bipolar. Since you mentioned that it comes and goes, perhaps you should consider that. I came across a link that gives a little quiz:
Congratulations on your new job. Perhaps the "routine" will help you to sleep simply from sheer exhaustion. Feel better.
DX: chronic migraine, cervical degeneration, depression/anxiety
RX: Wellbutrin, Lexapro, Soma, Immitrex
"You don't find out that God is all you've got until God is all you've got."