Take a deep breath! You will be fine. BCG is the best treatment, particularly for high grade bladder cancer. I was diagnosed with CIS a bit over 6 years ago, did the BCG and the BCG maintenance and am still cancer-free. Was it worth it? WHAT DO YOU THINK!!
Of course, everyone is different in how they react. I live about a 20 minute drive from my urologist's office and I drove myself there and back. The first few hours after the treatment are not particularly fun...you may have some bleeding, you WILL have urgency and have to urinate OFTEN. Don't plan to be far from the toilet!
The next day you should feel "nearly" normal. May have some burning with urination, and maybe some fatigue. I was always able to carry on as usual, but was aware that I wasn't really 100%. Some people find the fatigue difficult.
You should be aware that the side effects tend to increase as the treatments continue. This is because the BCG is causing your immune system to kick up, which is exactly what you want it to do. If the side effects become too much for you, the dose can be reduced significantly and still be effective.
We tend to recommend second opinions here quite often. In your case, it depends on several things. Where are you being treated? Are you comfortable with the doctor and his staff? It sounds as if the treatment you are getting is "right on" for you case. However, should the cancer reappear after you have finished the BCG treatments, it might be a good idea to seek a second opinion since you will have to consider multiple options at that point. However, we will be optimistic and assume that it will NOT come back!
BCG is not particularly fun, but it is a heck of a lot better than the chemotherapy that many cancer patients require. I tend to describe it as like going to the dentist. I prefer BCG (but then I am "dentist-phobic" in spite of the fact that my husband was one!)
Good luck to you
Sara Anne