Adding my voice to those advising you to seek a new urologist. For what it's worth, I just recently also had two tiny ("pinhead size") new tumors, after being clear for 2 years since an initial tumor. My urologist did biopsy on one, and removed both via fulguration; and, because of the recurrence, he's started me on BCG, even though the initial tumor and the 2 new ones were all low grade and non-invasive. You mention that you've already had some BCG treatments. Are you on the BCG maintenance schedule now? (as recommended in Dr. Lamm's protocol)? If you are having recurrences (even low grade ones) while on BCG, I think there are some other things that can be tried, but I'm a "newbie" so am not sure what these might be. I do know that some of the literature suggests that BCG does not work as well for low grade tumors as for higher grade ones and CIS, but my urologist is nonetheless using it on me. (Maybe I need a second opinion too!)
Best of luck, and hope you can get some answers and get set up with someone who you can continue with long-term. My urologist said to me when I was first diagnosed, "We're going to know each other for a very long time." I think he was mainly trying to reassure me that low grade bladder cancer is very treatable.
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.