Started off with painful urination , took azo and plenty of water, fine for about two days. Then lower back pain, severe pain to the point I couldn t walk after laying down at night. Two negative urinalysis , some blood present, another urinalysis a week later making sure azo was out of system. Negative ultra sound for bladder stones. Back pain better for still sore and unable to job or stand for long periods of time with out experiencing pain , this has been almost a month now and currently having diarrhea for the past 4 days. None of this being normal or ever happening in the past.