No. An IUD will NOT do that to you. Your mental health is caused by your mental health and state of being and biological genes/makeup. An IUD, particularly the Mirena, is known to EASE the symptoms of PMS, NOT worsen mental health. At all.

You are out of control because you are not on meds and not being seen by professionals. You may want to consider admitting yourself voluntarily to your hospital until you can become stable again. Also, I would look into finding yourself a way to be able to pay for your health care. There are programs available for those who need assistance in paying for coverage.

I would seek help immediately.