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

### input:
Hi there, my name is Natalie. I am a 55year old working full time in a retirement village at present. About 2 months ago I had a Gall Bladder attack which I sort medical attention for. After doing blood and urine testd the doctors confirmed blood in my urine. I had to go for CT scans on my kidneys of which they found nothing. I had another urine test which still showed blood in the urine so I was sent for Ultra-sound tests. Still nothing? Although I feel okay at present, after long periods of reflection I remembered having these pulsing sensations in my mid back(where the kidneys sit). I still have these sensations now. I often get a dull ache throughtout the day as well. On reflection I recalled having Brights Fever when I was 2yrs old. I also developed Rhuematic Fever at the age of 11 which lasted through to around my mid 20s. I am a person who likes to keep fit and I very rarely take pharmacutical drugs, I take natural products instead. I have been wondering if the Brights fever could be connected to this condition that has developed now with blood in my urine? And I do now frequently get up to the toilet during the night.

### output:

Hello and welcome to Chat Doctor, Hello and welcome to Chat Doctor, Blood in urine suggests renal pathology. Some renal diseases can cause blood in urine. A renal biopsy will help to diagnose the condition correctly. Further management will depend on the finding of the renal BIOS. The pulsing pain on the back can be secondary to the cardiac problem. You need to consult your cardiologist for further investigations and management. Thanks and take care Chat Doctor. 