
I have the flu. This is not fun. Not fun at all.
Cyclical breast pain accounts for nearly 75% of all breast complaints. Of all women who experience breast pain, two thirds experience cyclical breast pain. Physicians often have patients chart their pain to determine whether the pain is cyclical. Though cyclical breast pain is usually related to the menstrual cycle, stress may also affect hormone levels and influence breast pain. Physical activity, especially heavy lifting or prolonged use of the arms, has also been shown to increase breast pain (pectoral (chest) muscles may become sore from physical activity).