Sometimes you have to demand what you want. In my opinion, your naturopath not knowing for sure isn't acceptable. I would question his opinions about the whole yeast issue and tell him that you sought him out so that he would be able to help you get to the bottom of things with your health. If he can't figure out what tests to order to rule out the possible yeast problem, ask him if he could ask a collegue. It's very hard living with constant health issues and even more challenging when the people you ask to help you, don't do their job or provide you with anything that can make your situation better. If the doctor can't help you, it forces you to look elsewhere.