I had issues when I first started hobbying due to some medication I was taking. Glad I'm not taking it anymore.
Anyway, when I had a P411 account, I added that info in my profile so that, if she did her homework, she would know in advance.
Even with that, with each provider, as we were beginning the session, I let her know that little Mister Tudball may or may not want to play during the session, but if that happened, it was in no way her fault or a reflection on her attractiveness, sex appeal, skills, etc.
But I've always had a great time with the ladies that I've had the privilege to meet. We always found something fun to do regardless.