For one of my first appointments with my current T, I brought a letter that someone else had written about me, because I was unable to bring up some things I wanted to talk about. That was... not exactly embarrassing, but really difficult and I felt immensely self-conscious handing it over. And I felt as if I was about three times my usual size, sitting there while he was reading it. But my T treated it as a completely ordinary thing to happen, which made it much easier. And it led to good things - so I would say it was a good experience.