A 50-year-old woman presents with recurrent episodic pain in her left lower abdomen for one year. The pain is dull and aching in nature and aggravated by standing upright and walking; it has not worsened over time. There is no history of urinary or gastrointestinal symptoms. Her medical, surgical, and gynecological histories are unremarkable. She is not on any medications. Her family history is unremarkable. She only drinks socially and does not smoke. A full blood count and random capillary glucose are within normal parameters.