I'm so glad to hear that nothing has shown up in your testing.You must feel very relieved.
When I had bleeding I was fortunate that my primary care doctor right away started the testing needed and lined me up with a urologist. I believe they first did a sonagram, which looked suspicious enough that they recommenced CT. Even though I had a very small tumor, it showed up on both, which was confirmed by the urologist during cystoscopy.
As to the cause of your bleeding, you don't by any chance take aspirin or other nsaids such as ibuprufen, or any prescription "blood thinner"? Urinary bleeding is a fairly common side effect of taking medications such as these, especially if you have been doing certain kinds of exercises. (My husband, who is on a medication to prevent clotting, recently had urinary bleeding which I suspect was related to doing sit-ups! He ended up getting a cystoscopy exam, and all looked fine, no cancer.)
Again, I'm very happy to hear your good news.
Ann
Small TA Grade 1, May-06; recur (2 tiny), same, June-08; TURBTs both times. BCG begun July-08, dosage to 1/3rd May-10, completed treatment December-11. All clear since 2008.