Generally, like I’ve just been punched hard in one kidney (the other kidney or flank area has no issues at all) and that pain stays for 2-4 hours. Coming and going every day and night. Sometimes like there is little stick sitting inside the kidney. Sometimes like someone is poking me in the side with a stick. Sometimes a sharp pain on that side down under my tummy, sometimes up above my nipple. Rarely have clear urine, sometimes do. Recently a feeling of weakness or slight numbness in that side’s leg or arm. For perhaps 16 out of every 24 hours, perhaps 8 of which will be the feeling that I’ve been punched in the kidney, the other 8 could be a mixture of the others. Ongoing for around 10 years, but recently it’s become more intense and uncomfortable, and staying for longer periods. 2 previous checkups including abdomen ultrasounds and and chest xray and urine analysis didn’t show anything, perhaps 10 and 5 years ago, age is under 60.