Yes. I have this ritual (and I've always had this ritual) where I need to get myself in the vicinity of the therapists office between an hour and half an hour before the session begins.

I... Read... Or I work on a seminar... Or I work on my thesis... But I also contemplate my week and contemplate some of the things I'd like to find the courage to talk to them about etc etc etc.

I used to find that my stomach would start to get all queasy / squeemish. And I'd need to go to the bathroom a lot, too. I developed this slight obsession with the notion that I might wet myself in therapy... So I go to the bathroom several times in that hour or half an hour lol. I'm getting better with all that now... But that is probably a function of sessions being 'lighter' in focus...