I was diagnosed with Pyelonephritis 2 days ago as I have right flank pain and CVA tenderness. In addition, I had dysuria, frequency and urgency. I have had an IV dose of Rocephin and an IM dose. I am also on oral levaquin. The culture is still pending. During the day, I have mostly been fine, but every night, I am awakened from sleep by this right back pain. I do not have a fever. What else could the back pain stem from?