David, the idea of losing weight is sort of relative. I'm six feet tall and have dropped this summer from 225 to 205 and am happy about that. Now my goal is to get to 195. However, in college, I was just as tall, but weighed only 160-165. The bottom line, then, is that I could drop 40 more pounds and still weigh as much as I did 50 years ago
So, since you brought up this weight loss issue, I wonder if you might clarify where you are in terms of height and weight compared to, say, a year ago. You just mentioned that you still "have plenty of reserve." Obviously, you haven't yet been reduced to skin and bones, though losing 3 pounds a week is a lot.
It's certainly easy to understand how your current situation, and I'm referring to the constant pain, as well as the anxiety over your bladder situation, could lead to a rapid loss of weight. After I was diagnosed with prostate cancer, I lost 20 pounds in two months. I was full of anxiety, had little appetite and couldn't bring myself to eat much. I asked my uro if my weight loss might be indicative of calchexia, and he chuckled. I think he was surprised I knew what that was, but he also wanted to reassure me that calchexia had nothing to do with the weight loss. I hope it has nothing to do with yours.
I often think of your situation and continue to hope that something good comes your way soon.