Yes I record session and yes I find it helpful. No, my T does not know. I tend to delete them after a few weeks, but it does help me remember what we talked about in session. I started recording because I was dissociating so much in sessions that I couldn't remember half of what we talked about. Also, If I dissociated outside of session, I could playback the part of a session where T was helping me get grounded again, and that would help me in the moment.