I've been hospitalized several times, had all kinds of tests - CAT
and without contrast and dye, blood work, etc. etc. They've ruled out kidney stones, gallstones, appendix, ovarian cause, growths, etc. But the pain is so severe that I faint. It can last anywhere from 1/2 hour to many hours. Sometimes, Gas-x and advil seem to help. What helps the most is lying down and stretching in the opposite direction of the spasm.