I lived in Japan for several years on and off. Near the end of one of my longest stretches, I clearly remember walking by the glass window of a storefront in Osaka. I saw someone in the reflection that had an absolutely startling appearance, and gasped aloud. Taller, with different hair, eyes, and skin than anyone I'd seen in months. It was me.
The experience of returning to the USA was particularly jarring that time, too. I remember feeling surprised at how fat everyone in the airport was, how there were people with different skin colors everywhere, how loud and lacking in politeness social interactions were. I was born and raised in the USA but there I was, experiencing fight or flight response in completely ordinary situations.
I learned to forgive the Japanese after these experiences.