I have already gone to my physician and lab for a urine dip, on Thurs evening, and Friday, my Dr.'s office hadn't heard from the lab. My back pain is so severe, it is hard for me to walk! I got a urine sample at home, and it had these white floaty things in it. I have had this before, years ago, but not with the backache! I have no burning etc upon urinating; just severe back pain 24 7!!!!