### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Pain in my right side, even with my belly button but 3-4 inches over, both front and back. Was severe and stabby (like contractions) a few months ago which lasted for a few days. This major episode came with ridiculous gas the day before, fever, and overall achiness. CT scan showed some kidney stones but doc said that wasn t the cause of the pain. He gave me an antibiotic for a UTI. The pain comes and goes still but its mostly achy and throbby now, some days are worse than others. No constipation or diarrhea issues.

### output:

Hi. Thanks for your query and an elucidated history. You have classical symptoms of pain at front and back in the area of kidney and the ureter, CT scan showed stones, and you were treated for UTI. I can decipher from your history a possibility of a stricture of ureter after the stone must have caused trauma and resultant stricture. The passage of the urine in peristaltic wave can cause the spasmodic, achy pain. The throbbing can be due to back-pressure. I would advise you the Following::: First the get an intravenous paleography to for the structural damage the urinary system. Ureteroscopy: helps in direct visualization, passage of the dye to get the contrast X-rays, this has a therapeutic value as passage of the stent across the stricture can relieve your pain, reduce the infection, reduce the back-pressure on kidney with its side effects. CT scan again: the first one showed kidney stones, The fresh one can show more than this and helps in diagnosis and ruling out other possible causes. Once the diagnosis has been made, the treatment will depend upon the cause.