<s>[INST] I HAVE BEEN HAVING SEVERE PAIN IN THE AREA OF LEFT KIDNEY. I HAD A CT SCAN AND THEY SAID LEFT KIDNEY WAS ENLARGED. HOWEVER A MRI AND RENAL SCAN HAVE TURNED UP NOTHING BUT I STILL HAVE THE PAIN AND NAUSEA. I HAD KIDNEY STONES AT ONE TIME BUT NONE CAN BE SEEN NOW. ANY IDEAS [/INST] Hello and welcome to Chat Doctor. As a Urologist, let me assure you, that left kidney pain can be easily diagnosed, after doing the tests as mentioned by you. If you can send a copy of the CT and MRI scans, I can give an expert opinion about cause of the pain.  Hope your urine and creatinine tests are done.  Kindly mention your age and gendered the reports as a direct question, in my name, and I shall give you expert advice. Chat Doctor.  Manga. </s>