Hi , I have been using copper coil for 5 years & is due to be replaced now , I had bleeding between periods last few months then last week I went to the fr& said its big polyp & she removed it , since that time I m experiencing severe back pain & cramps , no bleeding, but I v been experiencing these cramps from few months but it gets worse after the removing of polyp , I googled the symptoms & the results not pleasant, is it something serious or could be because of the coil? Thanks