second topic

If you make an appointment for one thing at the doctor but want to bring up a second, is that something you should tell the nurse who comes in before the doctor or can you just bring it up to the doctor when they get there?
I apologize to anyone getting annoyed by all my posts about going to the doctor. I'm just trying to figure out how to bring up my anxiety and the whole thing is stressing me out and I just want to go about it the right way.