Pyelonephritis frequently presents with flank pain, fever, and pyuria. Fever is uncommon in patients with uncomplicated stone disease. Dysmenorrhea, which rarely presents with flank pain, begins just before or concurrent with the onset of menses. In the correct clinical setting, dysmenorrhea is diagnosed after other disorders are excluded

https://notedoctors.com/dng/kidney-stone-nephro-urolithiasis-v1-2/