So sounds you could. I get this way sometimes, along with some anxiety
Depression can pop up whenever it feels like:(<br />
When I start slipping I try to tweet my day to day to make it easier to be in a good mood. <br />
I try to only watch funny movies, listen to up beat music, or just do things that put me in the zone.
Lets hope you are not entering the circle of something more serious.
like developing a personality disorder or falling in love.