i have had the mirena coil in for five years and it will be took out in the next couple of days. i have gained weight severe headaches which last continously for three days before my period. for the past two and a half years i have had excessive sweating all over. i have had blood tests to rule out menopause, liver qnd over active thyroid. the tests came back clear. im just starting to wonder if its down to the mirena coil?