Lower back pain, irritability, sore legs, oedemia, aware of breasts but not sore?

Premenstrual: Some of these symptoms are characteristic of premenstrual hormonal changes causing fluid retention which results in edema, breast congestion and even pelvic congestion, and mood swings. If this is a common monthly occurrence taking a mild diuretic several days before your menstrual period often prevents these symptoms. Discuss this with your physician or gynecologist.