Doc apt. Tomorrow making me stressed

Hey everyone. So my DH and I have been TTC for A year and a half. Since going off birth control my AF symptoms have been absolutely horrible!! I have talked to a few people and they feel it sounds like I may be suffering from endo. (My mother had it as well so it's a real possiblity) we booked an appointment to talk to our doctor tomorrow because we really want for him to really look into our reason for not have conceived yet. I have been tracking and charting but have taken the last month off from everything. It took me 3 months of waiting for this appointment to finally come so I want to make sure my doctor really understands that we want him to really listen and help us whether that be getting fertility tests set up (what we really are hopin for) and looking into endo. Anyone been through this before and have tips? I haven't alept for two days thinking about what to do at the appointment...