<s>[INST] My mother in law has been complaining of back spasms off and on for the past several weeks. A urine culture was taken which was negative for UTI and bladder infection. The MD told her she had kidney stones and prescribed antibiotics. She felt better for a while, but the spasms are still coming and going. Now she is also experiencing dizziness with nausea/mild vomiting and more frequent than normal stools. Are there specifies tests we should request be done in order to get to the bottom of this. [/INST] Hi, Thanks for writing in. It is possible that your mother-in-law has multiple small stones in the kidneys. This requires a detailed evaluation with CT scan PUB region if not done earlier. Please discuss with her doctor should there be a requirement to do a CT scan PUB region to evaluate small stones in the kidneys and urinary bladder region. The possibility of small stones in the urinary tract persists and therefore the suggestion for detailed evaluation. Some stones might be 2 mm in size which is small and not routinely visible on scans. These might travel down the ureter from time to time and cause distress and discomfort. She also might require a complete general health check up to know if there is any condition like anemia which might be causing her to feel weak with symptoms like dizziness and nausea. Please do not worry. </s>