Girls/Ladies how do you know when ur period is soon? like pmsing cravings?!

I become really snappy. I feel dizzy and gassy, and I crave huge amounts of junk food, and I want to sleep constantly. Oh, and I get a migraine the day before.

Rarely, ill get more discharge, kinda moody, and feeling a bit sick.
But usually i get none of that, and about a week before, i can just feel it if that makes sense.
And my period isnt completely regular either, sometimes its exactly a month after the last, others its a week early, or behind.

Sixteen.

I crave CARBS like crazy!!! For like a week before I just go nuts on carbs of any kind.

Also, the day or two before I get extremely emotional. I'll cry at the drop of a hat.

Usually the nite n4 I eat like everything in my house lol and I break out a lot the week before too

i crave things ever day.
but ik because i get superrr depressed.
for no reason.
its fun.