Sorry to hear about the obsessive thoughts--they're the worst. I hope naming and taming it works for you. Good luck with everything.

As an aside of my own, I think it's possible your T seems hesitant to talk about it because he's hesitant to be the first one to name it. I think sometimes T's don't want to be the first ones to name something like this because imagine how awkward and self-aggrandizing that would look if they were wrong.