I've got a BIG comfort zone, don't like anyone being in it and I don't like being touched or hugged by anyone. My Mom and sister are not the hugging types anyway so I get away with a lot of physical space.
My dad's family are big huggers especailly at hello and goodbye. This was very, very hard for me and I avoided it. I was nine when I met them, they didn't understand, and I think they took it personally. I never got over it and they still don't understand. I avoid them.
I don't like being touched by strangers either and avoid things like hair cuts etc.
So, triggered or not, I don't like being hugged or held or touched or stood next to. When I am in a line I stand sideways. I nearly decked a girl in a bar bathroom who tucked the tag into my sweater while I was washing my hands. She backed away fast. I'm not a hitter, but the look on my face scared her. That scares me.