I found a small concern

Last week I went to deep Fukui.
Between Kanazawa and Tsuruga, there is the second longest railway tunnel in Japan.
Hokuriku tunnel is.

The train takes 7 or 8 minutes to pass through the tunnel.
While the train was passing through the tunnel, I saw my reflection on window.
I thought I found a small concern.

The hair in front of my head had been fading away.
Actually，recently I feel that the medicine I have been taking for a long time became no longer effective.
I have to think of something new.
So that my hair doesn't get any thinner.