mixed urogenital flora and calcium oxyate crystals

I had a urine sample U/A had bood , amporphus phosephates sediment and calcium oxylate crystals. My urine culture found mixed uro genital flora

my question is, I have had these same types of results before. ( along with right flank pain & low grade fever) - In 2003 I had abdominal ultrasound( would this have checked kidneys?  I was told by Dr. that crystals are normally found in urine time to time and also that mixed urogenital flora was contamination of specimen. Yet my OB-GYN gave me antibiotics for the culture results. In te mean time its 1:10 am I have pain ( not sever just dicomfort) So I am awake & thought I d post this. I see my endocrinolgist in tomorrow so maybe he can help forward me to where I need to go from here

Barbara