hello my name is nancy, I took my daughter into the er Friday night cause, on Thursday she was feeling clammy, faint, chills and had some side pain/back pain. the er gave her some fluids and nasea meds and released her. today sunday they called back and put her on macrobid because they did a culture on the urine cause of white flakes they found. today 7/24/16 my daughter tells me the symptom of lack of urination. she only peed once today. she still has discomfort in the back, but not feeling that bad for concern today. what should I do, I don't want her to go into kidney shock or whatever and miss all the signs. she started the meds today 7/24/16 macrobid three day after but could of had symptoms she didn't even recognize earlier..she is 17 yrs old