As 'just' a muffin can make your day...

'OK. Here are a couple of my thoughts. When you say, "I'm 32, married, educated and employed," I do not think to myself, wow, that person sounds happy. I think, wow, that sounds dull. There is no joy in the sentence. It sounds, frankly, like depression. It sounds like the airless, pleasureless realm of anhedonia.
I hear sadness. I hear a silenced self. I wonder who that silenced person is. It may be an athlete. It may be an artist. Perhaps there is some striving, messy, error-prone genius in you that is not being heard. Perhaps this genius is angry at you because she's not being heard.

You say, "On the surface, everything looks great."
A lovely surface is a tragedy. If there is no ugliness on the surface, the the ugliness must be underneath, eating away at us. There is always ugliness. It's got to be somewhere.

Here's the other thing. You say that you're OK feeling like there might be a thousand tiny reasons that all combine to make you depressed. Likewise, a person who is relatively happy may have a thousand tiny sources of happiness. Throughout the day, a person has moments of pleasure. You learn to have these things that get you through. Maybe it is a raisin bran muffin bought from the sliding window of Specialties at Montgomery and Market streets in San Francisco. It tastes good, doesn't it? Maybe it is the heat on your chilly hands of a medium-size paper cup of drip coffee bought with the muffin and carried into the street. Maybe it is seeing the security guard behind the desk in the lobby of your building, the clack of your heels on the stone floor, shifting your bag with the muffin in it to your left hand and pressing the round button for the 27th floor and seeing it light up.

Maybe it is a song on the radio as you are driving to work. Maybe it is something you have on. 
There have got to be moments in your life that give you pleasure and you have got to pay attention to them.
I think you have made a great beginning by writing this letter. You have begun a journey of self-discovery that will be years unfolding.

And so it begins. Good luck. Don't take hazy, noncommittal half-truths for answers. This is your life. You deserve to know. That's the only way you will come alive again.'

http://www.salon.com/life/since_you_asked/2011/02/23/anhedonia_and_depression