The silence after someone says 'I'm fine'

I was checking the trail markers near Silver Glen this morning, and a hiker paused to say 'I'm fine'—not with a smile, not with eyes meeting mine, just flat. And then the air changed. Not heavy, not sad, but full. Like the forest had inhaled. I stood there for a minute, watching moss grow on a fallen pine. It wasn’t about the words. It was the way the silence after them held more than any answer ever could.