I have had my merena recently taken out after having it in for 4 years and have not stopped bleeding for almost 2 weeks. In the last week though i have been having very heavy bleedouts where i am nearly changing my pad every 2 hours and passing very dark blood clots the size of a 5cent piece. I am extremely tired all the time - even after having a good nights sleep and am suffering from headaches. Is this a normal post side effect?