Natasha, it is not uncommon to have a second TURB about 6 seeks or so after the first. What you are having in a couple of months is a cystoscopy...where the uro looks into the bladder...not a biopsy. You will probably be having cystoscopy every three months for about two years. Then, the usual practice is to have them every six months until five years, then annually forever.
BCG is an "attenuated" (ie, weakened) form of a TB bacterium. I believe it was originally developed for use in children!! The treatment is not fun, but very doable. I would rather do it than go to the dentist!! Unlike the usual chemo, which affects the entire body, BCG is used to elicit an immune response directly in the tissues affected by cancer, the bladder lining. Therefore it is infused directly into the bladder. At first, there is just the discomfort from the procedure itself. As time goes on, and you have more treatments, you would probably feel more generalized effects...fatigue and a low fever a couple of days after treatment. And if the side effects become too pronounced, they can reduce the dose. I am so grateful that I was able to have BCG and have been cancer-free for five years!!!