Irregular bleeding, painful cramp, tender breast, nausea. What is the matter?

It started all last week. My lower gut area had the feel ir bubbles going around down there and not a painful cramp but more li ke a constipation cramp and saturday I got what maybe was my period I bled and cramped for a couple of hours and then it stopped. It wasn't heavy lu ke it normally is. Sunday I woke up still no bleeding. Later in the afternoon though very painful cramps which usnt like my normal period bled for a few and stopped. Monday light cramps and the bkeeding lasted a few wipes and nothing. Tuesday a few spots not cramps though. Today no bleeding. My breast have been sore for over a week nausea bloated feeling hungry but then when I go eat feel like puking tired a lot. Any ideas what the matter?