Hmm....I thought I wrote this title when I saw it! My mind goes blank ALL the time in therapy--probably 90% of the time is me going "I don't know." and struggling SO HARD about what to talk about when my mind is suspiciously blank. My T does know this, and has suggested that something is scary and my mind just shuts down.

I SO understand and share your frustration. I just had a mini-epiphany (that I am about to go write a thread about ) about part of this for me. I hope that maybe it helps you?