Re: Starting therapy soon, got some questions!
You don't have to do anything you're uncomfortable with. If you were doing desensitization, it wouldn't jump right into things you're scared of. YOU would have to reach a point on your hierarchy of fears that you felt like you could manage your anxiety when facing that fear. A low level desensitization might just be saying the word vomit without feeling anxious... or seeing the word... something like that. That might not be the direction the therapist goes at all, and if they try to force you to do something you aren't comfortable with then just fire them and find a new one. They're working for you! (and with you, hopefully, but not against you!)
"I'm not supposed to be like this, but it's okay" -- The Wrong Child, R.E.M.