Me too, I just sort of shut down. Like my brain goes bleep. Then I have to stay in bed a couple of days and recoup.

I had to drive down to Olympia in the worst wind and rain storm we've had here in a few years. I was supposed to go to a conference/training. I ended up pulling over, getting a hotel room, crying all night.
My T called me at work one time when it was particularly stressful. I couldn't even answer her ? about changing my appt. It's like my brain disconnected from my mouth. She was very concerned.