What Causes Dizziness, Nausea, Bruising, Moodiness With Heavy Periods?

Hi, may I answer your health queries right now ? Please type your query here... Hi Ive been dizzy, nauseous, moody, bruising easily, my period was heavy, I got a pregnancy test which came back 6 then they got me to have another one and it was 4, headaches as well. What's wrong with me?