Is it only me are do all woman breast get bigger during menstruation ?

Yes, it is a hormonal change thing, before and while. heavy and full. Yes, there are more to mention not just physical change during and before the time. back pains are also part of it. Mood swings, temperamental, appetite or desire to eat and eat on almost anything, specially sour food and emotional very very emotional . I don't know why.. these are my symptoms of the day is about to come. so it is just normal and most if not all women feels these You can check on the link below if you are interested to know more about this monthly thing. http://news.softpedia.com/news/How-Do-Hormones-Change-A-Woman-039-s-Mood-During-Along-the-Menstrual-Cycle-46418.shtml

I do feel them bigger and heavy also. And not only this before period I start getting pain and duriong period also they pain. I think you must be also having the same problem.

I noticed that too. I have never been pregnant but I have read a lot of women saying some pre-menstruation signs are kinda the same with pregnancy signs.