Sounds like hypo to me. I just went through very similar symptoms, including excessive exercising that I wasn't used to doing.

Even if not sleeping is due to anxiety -and that's very insightful that you've potentially caught that- the problem with BP is that lack of sleep can lead to hypo, which of course can potentially lead to mania. I think the fact that you have so much energy despite not sleeping is a sign.

If you're still not sleeping, I would contact your pdoc and see about increasing or changing meds. After some time of not sleeping, no one is really in their right mind.