Excess Bleeding, Thyroid Problem, Hemoglobin Less After Using Copper T. Under Medication. Solution?

Hi, I have been using copper T from past 2yrs & as per my gynic there will be spots of blood few days before having my periods. However, since then, I have been facing problems with my periods. Excess bleeding, bleeding for more than a week, spots of blood even after the periods.........
Since then I also had problem with my thyroid and now i am on medication and thyroid is under control. As per my thyroid treating physician the above problem is not of thyroid.
From the time of using the copper T Ialso had problem like very low haemoglobin for which i was taking iron tablets and now the haemoglobin level is almost normal but the iron contant in my body is very much low so i am still on iron intake.
From past a week i have started bleeding again. I was bleeding almost for a week before my periods(spoting before periods) and then I had to take tablet to stop bleeding. The bleeding stopped in a day or two and then I got my periods which i had to stop with the tablet again & now from past 5 days i am bleeding again during morning time (may be body is getting strained because of morning routine). Please advice. THX