I should look at my diet if I were you.
Are you drinking coffee?
Coffee, even if only taken in the morning, can upset your sleep pattern.
Are you eating enough greens and veg in general?
Enough water?
These could all be issues.
I have increased my energy quite a lot by increasing my intake of raw food.
Here's a link to learn more about it
Raw Food Media™ - The Leading source of Health Information