I feel... Indefinable

Aren't our feelings, our emotions, supposed to fit into categories? We're raised knowing what "happy" means. I'm happy. I'm sad. I'm mad. I'm whichever thing. Pick the category. The problem that I've discovered (Deepak would say, "Challenge. Not problem.") is that emotions don't fit into the boxes. The boxes are too little, and the emotions, too big. When too many different things are warring inside your head, and someone asks you how you are or if you're doing alright, what do you say? I guess you say what my friend Rohil says, "GREAT!" and just make it so by the power of the spoken word. (He's quite wise, beyond his two years-of-age.) So I may feel indefinable, but I'm doing GREAT!