I'm in the same boat...and no one thinks it the IUD. I am on a mission to prove it because I know I'm not crazy. I've been a well person until getting pregnant (11-07). Since then I've had the pain, tingling, either throwing up or have diarehha but peeing has decreased. The last word, the doctors think I could have some intestinal problem. Did a bunch of test and WHAT DO YOU KNOW the test came back negative, once again. My OBGYN who put the mirena insists that this is not the problem. I will prove it and bring him back the information and make him take out this damn thing!
The worst part is people thinking I'm crazy! Everyone thinks I'm faking the pain and being constantly sick.