I have had this sort of pain in my left back area, between the spine and the ribs. It doesnt always seem to hurt, depends on how I am sitting.

There is no pain when peeing, I also had a urine test about a week ago and although it showed some abnormalities, there were some ketones but no sign of a uti or blood.

Any ideas?

If I arch my back backwards then the pain seems to go away mostly, If i sit forward or similar then the pain is there, from what I understand with kidney pain it would be constant and not just depending on where you move or sit.