hi i'am 35 yrs,5'3 , around 16 stone i had a baby 8mths ago and then in december 2010 i got the mirena coil put in and i was fine for a few mths then i started getting pains in my butt cheek bones, and the backs of my legs. then a few mths i got the mirena coil removed and the pain i had as good as went away, but some mornings when i get up i have the pain for a while then when i start moving around the pain goes away . can you please tell me what the cause of this is ? han you ann