Charles,
There is no need to appologize or beat your self up over your reaction to the fear of cancer. This is a place where you can freely ask questions, and receive responses from people who have been there, people who understand what your are going through.
Many of us who come here have had our own gut-level reaction, ofren based on prior experience with a friend or family member who was afflicted with cancer. That past can create strong personal demons that claw at us and are often hard or impossible to shake off.
Please do be aware that it will take some time to get answers. You cannot expect answers at a first appointment, Diagnosis takes time, and may require referral for testing and results; it is a process.
Be assured, you are doing the right thing in seeking to identify or rule-out urinary tract cancer. Although unlikely, the treatability of urothiel cancer, when caught early, makes early intervention the smart move.
Best,
Jack