Welcome neonfaye,
All are welcome here and you certainly are not violating any "rules". Yes, your symptoms are concerning. However, you have had several tests that rule out some things and you are attacking to find answers, so that is good. At the same time, you do want to find out why your symptoms are happening. Anything I would say is simply conjecture. The waiting IS the worst part. So many times, symptoms lead to benign diagnosis, false concerns, or causes that are never found. Simply said, you know nothing until you have more tests done. I would search for the best URO in your area and as you have posted, a cystoscope should be another exam. Please do keep posting as someone else may have better advice and we all learn from each other. Should results show cancer, remember that much of this is treatable and beatable.