Im 29 years old im 5'2"and my weight is 127lbs. Ok I had my period 4 days ago on those days I felt dizzy nauseous /vommiting. My breast was painful to touch took 3 days.my bleeding is not dat heavy took 4 days usually my regular. Period takes 7 days and its light red this time.I never felt those symptoms before! And my belly its like its getting bigger ang always gassy and having diarrhea. I took two pregnancy test but both negative.if im not pregnan what is this?still feeling nauseous once in a while.please help me?