Symptoms    may vary,   but they    include fluid   retention   (bloating,  edema,  breast
tenderness),    autonomic   changes (insomnia,  fatigue,    heart   pounding),  emotional
symptoms    (crying,    anxiety,    depression, mood    swings),    and musculoskeletal
complaints  (headache,  muscle  aches,  joint   aches). The most    common  affective
symptom is  mood    swings, and the most    common  physical    symptom is
abdominal   bloating.
Figure II-12-2. Premenstrual    Syndrome    Diagnosis   by  SymptomsFigure II-12-3. Premenstrual    Syndrome    Diagnosis   by  Timing