Who is in my glass?

Yesterday evening I caught a glimpse of myself in the mirror and I was taken aback for a moment at the  reflection that stared back at me. I appeared youthful and happy and I have to admit that it seemed odd. I am so used to seeing myself with the furrowed brow, sunken half shut eyes, and slumping posture the come along with headaches that the image of myself when I feel pretty good seems to be the foreign one.

It occurred to me that one of the reasons I have been feeling so old recently is that I so rarely se myself when I'm not in pain.