What are the signs before you start your period?

When you have very bad head ache , when your stomach hurts , when you back hurts , when you have growth spurts , dishcarge , borwn discharge , when your breats hurt / tender , when you are itchy *down there* only some cases though , when you are tired most of the time , when you don't pay attention as much in class , and when you have a lot of mood swings.

I hope that helped! :)