Well I always hear people say "They've heard it all" but that simply isn't true. Everything is a first for them at some point.

I know baby T (while this isn't therapy topic really) was legit surprised/shocked when I said I hate popcorn. He kept saying "Huh" and that it was something he should make a note of because he had never heard that one before. I know my T was very unsure how to help me because of my phobias being things he wasn't too familiar with. He outright told me he didn't know how to help....

At any rate, yes it's possible... but who knows? The point is, if you feel you need to share, share. It doesn't matter if he is shocked or experienced or whatever. It matters that you need to get it out there. I am sure he has at least enough experience to figure out how to help you manage it.