Ovaries

I have an appointment next week to go over my symptoms I have been having , I didn’t have a period in October , negative pregnancy test , bloating frequently using the bathroom bowel changes , but getting an ultrasound next week but my obgyn nurse said I need to see my pcp for the other issues when clearly I have been having issues since the last two years but they have yet to run tests or anything to see if I could possibly have ovarian cancer I have all symptoms and have been having issues for the past two years , I’m 27 which I know if young but I have heard and seen stories, I am post at what to do because I want my obgyn to hear my concerns not base it off what the nurse says!!