headaches caused by hormones

Hormonal headaches can occur when estrogen and progesterone are at their lowest, often during the first few days of menstrual bleeding. 1

• Low hormone levels and blood vessels: Low estrogen and progesterone affect the systems that regulate blood-vessel widening and narrowing, which can contribute to headaches. 2 3
• Omega-3s and PMS-related headache: Omega-3 fatty acids may reduce the severity of PMS symptoms, including headache-related pain; their anti-inflammatory and pain-relieving effects are proposed as part of the explanation. 4