Ok so I'm 25 and I have had irregular periods since I was 14. But they are usually around the same time for the most pArt. anyways I'm not expecting my period for another week but when I wiped yesterday I seen pink on my tools paper but that was the only time I seen it was that once. I have been emotional the pAst week and have a headache today, and super hungry but when I eat I get full fast or feel nauseous. What could it be?