Let's try by answering this in a more honest fashion, which is to avoid the common answer we all have known and shift our point of view to our state of being at the time. The answer is limitless, depending on how one see their own self. Does this guarantee a sincere answer, though? Perhaps, not necessarily.
You see, unlike most of the things that we see around us, emotion is a dark abyss that is not measured in numbers or any specific points; eventually causing conflicting thoughts within our rational mind and the one that goes wild all around. Dissonance, you might say. It is possible to state your well-being simply from the dinner that you've had beforehand, or how you find your lucky penny on your way beforehand.
But, does it translate to how good you are? Indeed, not necessarily. Going in deeper and farther in time, more scars are visible; sometimes even more prominent ones. Those moments from your childhood that you have never dared to speak about, or perhaps, that person you wish you can never talk to anymore. The farther we see, the easier it is to see some things that are too big to see in such a narrow point of view.
Indeed, nobody is comfortable to talk about it; sometimes, a "Fine, thanks." is way easier to be just said in the given moment. We bury those things deep within us for the ease of simply going on. Nobody has to know.
So, how are you?~