Hi Xandria,
A wise person once told me: "It is an irrational thought to believe that something is wrong if you don't feel happy." Sometimes you just wake up and feel crappy... or blah, or even just "even".... due to lack of sleep, hormones, stress, etc.
Sometimes things just are they way they are, and we worry about how they got that way... like it is all under our control - as if!
:somehow they are unworthy or feel like it is beyond them.. to be happy in life.
You mentioned feeling "unworthy" a couple of times in your post... perhaps you are feeling guilty for stuff that you have done, should have done, coulda done, etc.... guilt sux... it takes a lot of effort to unthink your way out of it sometimes, especially when you have been programmed and conditioned to go along a certain path (dictated by freaks who want your compliance) or you'll be destroyed.
It's hard to add to what bikerchic and Andee said, but if knowing someone cares about how you're feeling helps, here you go.
hugs, lauralisa