I did

When I was under State care, I literally held my file in my hands at each appointment, it had my T and pdoc notes. I mostly just checked it for my lithium tox screens, which I texted to my friend, who would then confirm if everything was normal, etc.
I found her recording details of my appearance off putting at first, but realized it was directly tied to my mental state, mood, episode, so it was relevant afterall, and ceased to bug me.
I'm going back in January, and will definitly be checking my T notes at each appointment. For me, yes it started out as curiousity, but I also want to make sure that they are getting an accurate image of me, and thus recording accurate accounts of my appointments....