My wife, age 33 years,60 kgs, having ceasarian and family planning in 3 delyveries, the last chile around 5 years, she was feeded them, presenlty she is feeling a lump in her left breast, during menstruation, its getting pain, after that slightly reducing, what could be the reason. And also she is getting menstruation first and 3 rd lighly and 2nd days heavy, is it normal. please guide us.