I hear you. 73 years old. Had one TURBT locally. NMIBC TA stage. Sought out Mayo. Had TURBT, then BCG and then another TURBT. Scheduled for another 6 week round of BCG. I tolerated BCG well the first round and hoping the same for the next. BCG is just about 90 seconds of minor discomfort with catheter and formula instilling. I think less than 10% have a problem with the BCG and of those many have had chemo prior. If you’re at Mayo I believe it is the best place. My local urologist wanted to give me only half the dosage of BCG because of what they said was a nationwide shortage. I messaged Mayo and they advised to come there for BCG as they had no shortage. Go with Mayo.