A poorly understood group of symptoms occurring on a cyclical basis: breast pain, irritability, fluid retention, headache, and lack of coordination is:

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Quizplus · Accepted Answer

PMS, or Premenstrual Syndrome, is characterized by a group of symptoms including breast pain, irritability, fluid retention, headache, and lack of coordination that occur cyclically, typically in the luteal phase of the menstrual cycle.

A Poorly Understood Group of Symptoms Occurring on a Cyclical