Your post is actually one of the ones that most resonates with how I feel/what I think my anxiety is like. Foreign or frankly, even just new travel is always very stressful for me. Every once in a while someone suggests to me I pursue a job like teaching English in Japan but the fact is, I think I would have a really really hard time if I just picked up and moved to such a wholly different culture/country/place as that. And it's times of uncertainty and adjustment that often help seriously re-trigger unhealthy controlling coping mechanisms which I have had in many forms in multiple real ways over the years.

I love being home. I love knowing what roads to take, knowing six different ways to get to the same place. All that jazz. Travel, on the other hand, is a lot of roiling stomach, getting affronted because I can't control the plane or train, feeling lost, and looking forward to when I can get back to my own space and be surrounded by my own things. Tagging ButterflyEffect because it ties into another comment I made a long time ago.