Seating arrangement

I’ve been seeing my T for about 3 years and have only recently requested we change the seating arrangement so that it is less confronting for me. It’s something that I should have done 3 years ago, but it was a scary move.

This coming session, I need to have a difficult conversation. I want to sit on the floor, but the thought of confronting that with her is scary. I want to sit on the floor so I can wrap my arms around my knees and make myself small. I don’t think I need her to sit with me on the floor, I just think I would be able to talk more freely if I can floor sit.

I just don’t know how to go about it I guess. I don’t want to talk about it but I don’t want to feel weird about it either. When we changed the seats around, I just emailed and she accommodated so when I arrived, the chairs were rearranged. I could do the same thing, but this seems scarier.

I agree with you about sitting on the floor, I prefer it. I walked in the room once and just said, "I need to sit on the floor" so I did. You don't need to ask their permission for stuff like that.
I don't make a habit of it because I know T finds it uncomfortable to sit on the floor.

That is not a problem.

When you get to session, simply say 'today, I would like to / am going to sit on the floor. IF she asks why, a simple 'I would feel more comfortable' should suffice. You don't have to get into it if you don't want to. It is all fine.

It's pretty common for clients to move around and Ts are generally open to exploring and 'playing' with the space, seating arrangements etc.

Be direct and honest.
"I would like to ask you something. I am feeling a little bit anxious to ask but I do not want to regret for not having courage to give it a try. I would like to sit on the floor. I just think I would be able to talk more freely if I can floor sit. Is it OK for You ? "
I don't know how much from the above fits You. This is just an example what I could say to the therapist in the similar situation.
In a trusted relationship You can ask anything. You’re basically teaching her how best to work with You. Good luck