ever since i got the mirena i havent had aq steady period i only get a period every 4 to 5 months and i dont beleive that healthy at all, i have vert painfull cramps at least once a month that last at least 2 tpo three days and when i do get my period it very clotty and heavy for only two days then its gone,i get light headed all the time and constent headaches is this possibly beacuse of the b.c i really need to know i have asked my doctor but she keeps telling me theres no way its the bc and i think shes wrong but maybe im wrong unless im not the only one experiencing this