breasts

Breast tenderness and lumpiness that changes with your cycle is very common while your hormones are swinging. Progesterone falls first, and the tissue reacts.

What helps: a supportive bra (including at night on bad weeks), less caffeine, and magnesium if your breasts ache before your period. Any new hard lump, skin dimpling, a nipple that turns inward or discharge from one side is not a hormone symptom: have it checked, and do not wait for your next appointment.