I understand your concern. When you consider your symptoms, you have to do a series of medical tests to eliminate the possibility of acute kidney damage. You have to measure the CBC, urine test, and glucose levels. You have to run a blood test and evaluate the electrolyte levels to understand kidney function. You also have to do a radio scan to capture the details of the kidney.
Doctor, I'm experiencing swelling legs and frequent urination and fatigue, and I'm worried if you're having a serious illness.