I almost did once, when I was seeing a special T for a consult/diagnosis. It was scary, I had a wave of blackness come up out of nowhere, but thankfully, didn't lose consciousness.

I'm sorry that you're going through this. It sounds like you have a very kind, supportive therapist though!

Are you still having extreme anxiety? Do you know what's causing it? Is it therapy itself, or something in the rest of your life? Are you aware of the anxiety before you get to the point of fainting? I hope you're able to talk with your T about it, and hopefully work out some techniques to help lower the stress levels...

(((hugs)))