@kelly223 From my experiences as a long-time kidney patient, and having several testing images of different kinds done, it is not unusual that our kidneys are not the same size. In my case, my right kidney has consistently been a bit larger than my left one. And having kidney pain can be very uncomfortable, right!?

You may want to talk to your doctor about an MRI or CT scan to get a clearer idea of what is going on, if they plan to address the issue. I personally cannot have contrast due to my eGFR of 15% function, but CT scans can be done without it, and they have done it. Something they might be looking for is a twisting or abnormal finding in the area of your pyleoplasty. Has there been an injury in that area, like a blow or jarring, or another procedure nearby?

Do you have any remedies that seem to help you when you experience this pain? Tylenol, or hot compress, perhaps?
Ginger