I have very sore and tender boobs for more than a week before my period is due. I don't normally get this - maybe a few times a year. Does anyone know what this means and does anyone have any tips to make them less painful? I already take evening primrose. Not pregnant. I find the variations in my periods month to month mind boggling - some months it passes without event and others it seems to take over the entire month, involve a lot of pain, digestive issues, mood issues etc. does anyone else experience this and how why it is?