Bum evening

Having a really bum evening tonight.
Couldn't sleep and my brain is just a fog.
I guess its depression but I really have no idea why. 
Nothing drastic nor "bad" has happened recently other then a co-worker, if you will, is being annoying, but that shouldn't get to me.
I'm a bit sad over the Queens passing but, again, that shouldn't be triggering things.
Maybe its just that life is kinda "same ole same ole".
Saw the eye doctor last week and he says its time for new scripts on my glasses.