Final answer:
Irritability and mood swings are key symptoms of PMDD, which is a more severe form of PMS and can greatly impact daily life.
Step-by-step explanation:
Among the symptoms listed, irritability and mood swings are more closely associated with Premenstrual Dysphoric Disorder (PMDD) than with Premenstrual Syndrome (PMS).
While PMS can involve a variety of symptoms such as breast tenderness, headache, and bloating, PMDD is characterized by more severe emotional and behavioral symptoms. PMDD can significantly interfere with a woman's daily life, affecting relationships and daily activities, with irritability and mood swings being key distinguishing factors in its diagnosis.