Have you seen a doctor? I had a similar sleep pattern (or non-sleep pattern) before I got back on my meds. Now I rarely have any trouble sleeping. For me it was severe depression. You can get there before you realize it. No serotonin, lots of anxiety, you stop sleeping. It's not good.

I'd talk to you doctor first and if conventional approaches don't help, get thee to a shrink. The right combination of meds can be miraculous.

Good luck. Let us know how it turns out for you.