I am an unmarried girl. My periods started when I was 15 and now my age is 26. There is a gradual decrease in the quantity of blood flow that happens during periods.. On the first day, blood flow is very less, on 2nd day its better and for next 2-3 days only spotting is there. First I thought it was due to low Hb but its 11.5.. Ehat can be the reason and how ro treat it. Please help!