Hello, Trisha! And Welcome!!!
I moved your post here, to Non-invasive, since that is where most posts about BCG are. You will see that there are a LOT of posts about it, especially at the top of the topic where they are highlighted.
You are doing exactly as expected with the BCG. Its purpose is to kick up the immune response in the bladder lining so that it rejects any cancer cells that might be present, and it certainly seems to be doing that! Of course, it is affecting other parts of your system also.
Fatigue is one of the first side effects that usually hits patients.
Chills, and a little fever are also not unusual. IF a fever hangs on or gets to be high, you need to call your doctor ASAP. Otherwise, it will get better soon.
And, as you have noticed, the side effects increase as time, and the number of treatments, increase. This is because your body is becoming sensitive to the BCG...which is EXACTLY what you hope will happen. When you feel these side effects, just sigh and remember that this is the result of BCG fighting on your behalf!!!
Sara Anne