I Am Due To Have A Mirena Coil Fitted Again

I am due to have a mirena coil fitted again sometime. It was due in November, but due to circumstances, it hasn't been done yet. My question is, over the last few days, I have had loose stools on and off. I did take Imoduim and they did stop, but started again today. I wondered, could it be because the coil hasn't been changed yet? Thank you. Kelly