Absolutely I understand about the door thing. They are literally and figuratively the escape.
In fact, I much much prefer rooms with two doors, and I will go so far as to say I have turned down apts, houses because the bedroom had only one door. That feeling of being trapped is just awful.
Yeah, others may not understand, but to be honest, I don't understand how people can not feel that way.
I don't know if I will ever shake it. It's just something I've come to know and accept about myself.
At least you *know* blocked doors are one of your triggers, and that is a good good thing.
One funny thing, one of my brothers is in law enforcement. It is hilarious when we get together. We usually end up sitting practically on top of each other to stake our claim to the most defensive position in the room. We've actually had to turn tables around in restaurants, or end up waiting for a particular table to open up.
Sometimes it's about keeping the fun in dysfunction you know?