I just read all of these posts and I have to tell you that I have been battling a so-called UTI for 3 weeks....I have been through two antibiotics, Cipro and Bactrum and I have had cultures come back negative...I have stomach pains in my upper abdomen so bad, nausea, loose stool. Dr's are still trying to figure out what the problems is; needless to say I am having this mirena removed on thursday and I have to tell you I CAN'T WAIT!!! This has totally controlled my life. I don't have any proof that this IUC is causing the problem but after reading all of this; word for word from other women, I'm sure it explains a lot. I wish I would have been warned of the UTI side effects long before I had it put in. I've had my Mirena for 2 1/2 years and I have been moody and no sex drive along with all of this and it makes me wonder...is this my problem. I'll let you know if I get better after Thursday.