My mom noticed my left breast is bigger than my right breast in a photo, and the left breast is bit sore and it has a thickness feel to it like its full. compared to my right breast. i did self exam n my breast and had my mom check it out as well she didnt feel any lumps she said. just a bit of thickness when i look in the mirror the left nipple looks bigger than the right. she thinks it may be time for my monthly cycle which is true its cloe to coming on but i just wanted another oppinion. if it gets worse or discharge comes i will go see the doc. but any auggestions? i have been moody as well.