I saw that exact paragraph mamaj! Crazy, isnt it? And in my case, I did have some very mild symptoms they talk about pre mirena (balance issues and some fatigue)... I am wondering if this was already underlying and the mirena jumped it out... but who knows, I am likely ahead of myself... I am sure I will go to the doctor and they will tell me that everything is 'fine'. Seems to be the answer I always get.