Hi , i m 22 years old female , medicaly free , since 2 months ago i have intermittant bilateral flank pain and back , i went to a doctor and he did to me urine analysis and KFT , result came out with normal KFT and UTI , he gave me antibiotic , 3 weeks after beside this pain abdominal cramp with diarrhea , now the diarrhea subside but i still have abdominal cramp , so what do u think ?