I find that this also has happened for me.-- usually the next day. I think it could be like gravyyy said-- that it's just so much to process in that one hour..... I think our minds keep on processing hours/days after we've left the session.
Wow-- it's nice you get to email T. I have never emailed T..... don't even have her email address.
--- I think I'd feel like too much of a burden, the shame and guilt after sending her an email, I fear, would disrupt the fragile relationship.
Sounds like you are doing some very great work