How are you, really?

I'm learning to honestly answer the question "How are you?" Even if people really do not want to know the truth, I am attempting to not always (and quickly) respond with an "I'm fine". Because I'm not fine, not yet. I'm better. I'm tired. I still spend most of my time in a surreal zone of processing all that has happened. I don't think any of those fall into the category of "I'm fine". At least, not yet.