Dave, sorry you are here, but welcome to our world. I was reading your thread, and decided to share my two cents about BCG and BCG Maintenance. I had my 6 Induction treatments back in Sep-Oct 2015, and I just finished up my first set of 3 Maintenance treatments this past week, so the 'experience' is still very fresh in my mind.
For me, I didn't have anything more than slight discomfort (chills, low-grade fever, and urgency) for the first 3 induction treatments. Side effects for treatments 4 and 5 were fairly intense (bladder spasms, excreted tissue/blood fatigue), and then treatment 6 was no big deal.
Three months after the 6 induction treatments, I had my first cystoscope and cytology work (all was clear). My doctor decided to wait three more months and until after my second all clear cystoscope & cytology to start my 3 Maintenance treatments. The 3 Maintenance treatments were at full dosage, and the side effects were a bit more intense than my #4 & 5 induction treatments, but very doable. My treatments are usually at 11 AM, and aside from fatigue, all of the other side effects from the treatments were gone within about 12 hours. From what I've read over the past 11 months on this forum and the Inspire forum, it seems like each person handles BCG treatments differently, some seem to tolerate it better than others.
Wishing you the best,
LilyG