I have been having throbbing pain in the lower right side of my back. The pain is present mostly at night when I lie down. Often awaken by pain. Sometimes the pain is present after I have been standing for a long period of time. Has anyone else experienced similar pain/discomfort? I also have an increase in joint pain since the back pain began. Because the pain is worse when I lie down my pcp thinks its nothing and suggest taking Tylenol which does not touch the pain. She tested my urine for protein build up.