IUD concerns (Extra TMI)

Shelbs

So i got my IUD in August. I havent had much trouble with it no periods but i get cramping. Im use to the cramping because of cyst in my ovaries. (up to 6 burst) So i have always been able to feel my string in fact my BF complained during sex about feeling them. All of the sudden ilI cant find them and he cant feel them. I have pain when trying to.go number 2 and in gerenal that whole area feels sore. After washing my hnds and taking a shower. I tried to feel for my strings. I felt my cefvic and the IUD its self but I could barely feel the string it felt like it was wrapped up around something. Either way I have made a docs appt for thrusday. I just feel so weird and it kinda of stinks down there. Not so much its self but my discharge its off white and punjent smelling.