Bleeding brown


I have always had normal results for smears and had my hpv vaccine, my period came last tuesday and it started off realy light almost rust coloured then went 2 days of dark blood with clots now has gone back to dark brown but only in the morning tender breasts no pain which i usually get i also have pcos i dont have smelly discharge or any pain can anyone help? I suffer reqlly bad from health anoexty