I had a MRI in August actually the day after the vibrating had started and it was normal. I am still having blurred vision with black floaters and ear problems .I don't know if the vibration in my head is do to the Mirena because it has never gone away and it has been 6 months. It is very scary it keeps me up at night because when I lay down I feel it the most. It does seem to get worse around my period time and now that the put me on prometruim it has gotten worse. I just want my life back not always worrying and feeling these things in my head. Thanks for asking!!