I use to have a terrible fear of traveling when I started having anxiety issues. Was not always that way. I could go to work and maybe the grocery store but once I got home from work, that is where I stayed. I guess I felt safe and in control, so I did not want to leave. Of late, I have been venturing out on day tips with my husband and realize that I need to get the heck out of the house! Still a little anxious but once we get on the road, all is well. Bu really I cannot put my finger on exactly why I was like that, except during those days I physically felt horrible and was depressed and slept a lot on the week-ends.
Hopefully this will pass for you as well!