Once, several months ago, my T asked me if I ever feel annoyed with her. I asked her why she would think that. She gave some suggestions. I told her that yeah, sometimes x, y and z would annoy me a little. She nodded. I still feel bad thinking about that occasion. Not horrible, but bad.

Not sure what I would advise anybody else to do - I'm sure that it can be a good thing to discuss it, since so many other people here have good experiences of doing so.