Im sorry to hear of your pain and feeling lousy...do you have a temperature? Either way, how about going to the emergency room? First off, you'll get an answer right away, and any infection they may give you a power blast of IV antibiotics to et you started. Kidneys are nothing to mess with - particularly with lupus. Just tell the ER doc you are on antibiotics and are STILL in alot of pain, feel really sick, etc. This issue is definately ER warranted. Dont wait for the others....
For God has not given us a spirit of fear; but of power, love and a sound mind. 2 Timothy 1:7