Hi. I am a 26 yr. old female and I have been having severe back pain since last week and mild pain in my back when I urinate. I went to Urgent Care and they said I have blood in my urine so they gave me an antibiotic and referred me to a urologist. I went to the urologist and he said that I don't have an infection showing up in my urine, but I do have blood. He scheduled me for a CT scan to check for kidney stones, but now I am running a constant fever (even though I am still taking the antibiotics b/c he told me to continue them). Is it likely that I have kidney stones? What else could it be? Thank you in advance for your help.