I've been described as "really shut-down" a lot lately - by my T and two different pdocs. At this point, my name should be fille "shut-down" folle. However, it sounds like the cause for me is different - my mind goes blank and/or I find myself unable to say anything. But I understand the logic you're using when you choose to stop speaking. I won't argue that talking will necessarily make you feel better immediately, but not talking doesn't seem very helpful either. If you choose to share your thoughts and feelings, it will help your T understand you, and perhaps respond in a more helpful way then or in the future.