The same thing that causes increased hunger, mood swings, and all the other things associated with menstrual cycle: Hormonal fluctuations. They're what cause changes in the breast ducts and the breast lobules. The breast pain usually occurs during the second half of the menstrual cycle when estrogen production increases and peaks just prior to middle of your cycle; it causes enlargement of the breast ducts, which then causes the pain.
Simple anti-inflammatory medications like aspirin can help take the pressure off.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.