Its the psychologist's job to know and ask the right questions. From your side, just answer frankly and honestly, as hiding any aspect of your problem just makes it harder for you to get whatever help you need. Don't be in too much of a hurry about all this --- the greatest waste of time is not doing the job properly. Yes, of course the shrink will need to know ALL medications you have been taking, their name and dose, and this should include prescription and over-the-counter meds.