question: I had a mirena put in 2010, no problems until last mth had a light period this month very heavy bleeding. went to obgyn he states mirena might be embedded, tried to retreave it but string was too short. set up for surgery to have mirena removed and tubes tied. had pre-op blood work done then was called back later the same day & told to come back to hospital my platlet count was 6!!!! ended up having to have platlets and immune globulin count went up to 80 in 3 days, dismissed from hospital period was very light, started bleeding medium next day went back to hospital had blood work up platlets were at 110 told could go back home & follow up with hematologist on Thursday. very scared, what caused this?