Hi Hero. Sometimes mood isn't "cut and dried." Like sometimes I have something that feels like hypomania, but it is so short that I don't think I can call it that. It's just an "elevated mood," and I'm starting to get used to it, relax, and enjoy it.
If I can guess, I would think it is just a slightly depressed mood. Maybe something you can do to lift it to something you're comfortable with?
Borderline Personality Disorder
Post Traumatic Stress Disorder
"It's never too late to become what you might have been."