Mirena (levonorgestrel) inserted 1st time 4wks ago, been having extreme mood swings for last 2wks, very emotionally unstable, could this be related? History of pmdd

Could be related . The active ingredient is Progesterone and can cause mood symptoms for some women. There is evidence women with a history of pmdd are particularly sensitive to hormone fluctuations that occur during their monthly cycle. If you can tolerate the adjustment, it is possible the Mirena (levonorgestrel) will actually help alleviate your pmdd symptoms because it will prevent those hormonal fluctuations.