I wrote the following:
When I opened my eyes, it was still dark. Half asleep, I got out of bed, and entered the bathroom. As I emptied my bladder, I checked my face in the mirror. For an instant, I couldn't recognize the person reflected in it. Only when I waved my hand and person waved back that I realized it was me. When had been the last time I'd looked at myself in the mirror? A slight headache came upon me. After flushing the toilet and washing my hands, I searched the cabinet for some painkillers only to realize there wasn't one. Right, I was in a hotel in Jade Mountain—not at home.
Shaking the water off my hands, I walked across the room, but then stopped abruptly in the middle.
An unsettling feeling began welling inside me. There's was something wrong in the room—but I couldn't quite tell what it was. I felt as though I had entered a house with the gas stove left on; the atmosphere was dense and strange, thought apparently invisible to my eyes.
Suddenly, I realized what it was: Naomi was no longer in the room.
I turned on the light and glanced around. Her purse, her clothes; all her things were still here. Everything except her shoes.
My heart started pounding at a increasingly rapid pace. I checked my watch. Almost midnight. Where could she have gone at this time? I turned to look at the window. The trees were still swaying in the wind and the leaves still rustling against the
ground. Quickly, I put on my jacket, my shoes, and then rushed downstairs.
Am effectively describing the character's panic and confusion? Does it feel natural and smooth?