Doug,
The weight loss is normal. I was REALLY hoping to lose a lot of weight but unfortunately, I only lost about 15 lbs and then I gained 10 of it back after a few months.
In my case, bowel movements are different due to the "pushing" action to empty the neobladder. I used to be a one-a-day guy but now it is probably 2-3. For a while, it was even more than that. I will say that I had more issues with bowels in the first few months and it got better for the most part. Different foods can have an impact on that so it is suggested to keep a log of foods and bowel movements to try to narrow that down. I didn't bother with that and things just seemed to get better over time. Your mileage may vary.
Do keep track of the weight loss and do keep your doctor informed.
Four weeks is still very early in the process. All the best for a continued recovery!
Mike
Age 54
10/31/06 dx CIS (TisG3) non-invasive (at 47)
9/19/08 TURB/TUIP dx Invasive T2G3
10/8/08 RC neobladder(at 49)
2/15/13 T4G3N3M1 distant metastases(at 53)
9/2013 finished chemo -cancer free again
1/2014 ct scan results....distant mets
2/2014 ct result...spread to liver, kidneys, and lymph...