I got my mirena on feb,22,2008.. one day I noticed my string was longer then it was shorter the next day.. I took a home PT. on aug. 09,2009. is was neg.. this is two weeks after i noticed that my string was longer then normal.. I have pain in my stomach and feel weak and sleepy.. At that time I was spoting, really light clored blood almost pink looking off and on.. Is the pain normal with the mirena. And is it allright that my string was long then back in place..