"I don't know" has been a very popular line for me but in all honestly, sometimes I just don't know why I am having certain feelings. My T once said something similiar, she said, I think you do. I didn't say anything...
Coconut, I know it stinks to shut down like that especially when you want to talk but your emotions overturn that. It will come in time, it's usually just a season you go through out of fear, often unconscious.

Hangingon