Oh wow... vomiting? I have pretty bad anxiety when it comes to that so if it did happen I'd have to leave her office. I highly, highly doubt that my therapist would up-chuck all over the place.. I'm certain that she would excuse herself and make a mad dash for the restroom. I tend to think that vomiting would be more likely with a client due to bringing up ( no pun intended.. ; ) issues that are extremely difficult .. however I am happy to say I've not had the lovely experience!