I shut down in response to raised voices because of my parents' trauma - my mother's older sister and my father's father were such violent and unpredictable presences in their childhoods that Mom and Dad accidentally taught their children to freeze in response to yelling.

I had some sympathy for lw #2 - anxiety is very hard work - but it mostly went away when we got to the part where "I can't help it if I'm more emotionally honest then other people."