Hello I have recently developed a discomfort/low pain in my left side/back region in the area of the kidneys. This discomfort moves around a little and is sometimes felt in the upper groin area as well. I have felt a little out of sorts, although not that much, and I seem to be a little more extended in the stomach, although my weight has not increased. I have had a partial nephrectomy (3 years ago) for a small cancer on the outside of the left kidney and am worried that there my be a tumour in that region and/or a recurrence of the kidney cancer
Hi, I can not rule out the cause of your anxiety, but before suspecting recurrence, think about the possibility of any infection. You may need CT scan of upper abdomen to identify the cause.  Hope this helped.