I've had two dreams that involved seeing T getting changed (which included some nudity) but it wasn't in a sexual way. In the first dream I walked in on T and was embarrassed and immediately left the room even though T said it was fine to stay. In the second dream I was talking to T and for some reason she needed to get changed and I just followed T and continued the conversation as she got changed. In the dream we both acted as though it was normal. Despite being super embarrassed I told T about both of the dreams and she was happy to discuss them. She didn't seem shocked or creeped out like I had feared. I would recommend you tell your T, I am sure she will understand and it could lead to some interesting insights!