"most of my girl friends love their iud&#039;s but so far i&#039;m on the fence. about a six weeks in i started to get really sick. jaw pain, migraines, vertigo and nausea, cramps, exhaustion, confusion, and unpredictable histamine reactions among other things. i went to 4 different docs including my gyno all of whom said it was unlikely from my iud and couldn&#039;t find any reason for the illness. i kept getting worse. finally i asked my gyno about intercranial hypertension caused by my iud and after researching it she agreed that was a likely culprit. the point is not every bc works for everyone. if it&#039;s not for you don&#039;t let a doc tell you it&#039;s all in your head. just keep asking questions."