I've been seeing my T/Pdoc for three years now, and have known since Day 1 that she has ADD and most of the time it's not an issue. Especially since I usually see her in the mornings when it's easier for her to concentrate. But yesterday was different: I was supposed to have skills group at 6pm (though our group has dwindled to 3 over the last few months), but she called and asked if I could come in at 5.
When I got there she told me the other girls couldn't make it, but she still wanted to see me as it was my turn to do some role-playing and I need to be ready for a meeting with my boss next week.

Anyway in a whole it was a very good and productive session, mainly because she realized I was petrified and she made me feel safe and cared for. But at the same time she was all over the place, like she got up a couple times to leave the room because she thought she had forgotten something, or she kept using a different name every time she talked about my boss but never the right one. I could just see she was really struggling with her ADD and I had no idea how to handle it. So I didn't comment on it, didn't rectify the name and tried to follow her lead.

What would you have done? I know she was really tired yesterday, and not feeling well, so this is probably why she was handling her ADD much worse than usual, but still I'ld like to know what's the best approach if this should happen again.