I am happy, I suppose. I feel life is worth living and I enjoy it, down to the smallest everyday things, even when I feel sad (I have to be really depressed not to - but even then there seems to be that special something inside me that makes me want to hang on).
It may not always show on the outside. There are times when I can be quite exuberant, but there are others when I'm content to be somewhere deep inside myself and watch things go by as if from the bottom of an ocean. I am still happy then. But I have no idea what my face could look like to others - my guess is that it appears serene at best, and at worst, flat, maybe even miserable and discontented.
People will sometimes ask me what is wrong during such moments, or what made me look so "sour", and it used to make me angry (occasionally it still does) because it is *so* discrepant with how I really feel.
Wishes 11:
Perhaps your son is a similar way and feels happy more often than he actually shows it? Maybe he doesn't feel much of a need to express his emotions openly, or he isn't comfortable doing this. It's also possible that he has been facing pressure at school and/or while interacting with his peers, and has actually been feeling depressed because of this, especially now that he is growing up. Do you think it would be a good idea to try and talk to him openly, ask him whether he feels unhappy, and, if he says he does, ask him what is wrong? I'm not sure how good he is at describing his feelings, or how willing/comfortable he would be with this; but even if he does not share much, I think this could still make him feel better because he would feel you are reaching out to him.
I could be wrong of course, I am only saying what would have worked for me if I were in his place.