My period is usually 4 to 5 days. Cycle is every 28 days. My period was two days late and when it came, it lasted two days. Before it started I was nausaed from certain food smells. I had headaches, uncontrollable gas and I am always pooping now when I usually don't go everyday but now I do. My nipples were soo sensitive. I was fatigued. (Still am). But after my two day period Im still feeling nausaed and fatigued and have diarrhea. But feel normal. I dont know what to think.