I have felt anxious a lot, but I think it's normal talking about deep emotions I had buried for decades. I sometimes tell her I'm anxious, most of the times she probably realizes it anyway (by my fidgeting, or my laughing, or whatever I do).... I have never had a panic attack during therapy, but they've become rare anyway. If I had one, I might have to leave her office tho, due to some unpleasant symptoms. Anything else, I'd sit out with her and be glad to have support in that situation. Usually, I get anxious when I am about to go to a very uncomfortable place inside me, and there are a lot of those, but I think that's exactly why I go to therapy - to get through it, not around it.