Mirena - My OB recommended it to treat HMB - I was wondering does it also tread PDD?

I have 2 weeks each month that I just am not myself and was hoping for a way out - I have read on a forum that Mirena has caused other mood issues. I don't want to trade problems or not treat it at all. I am not interested in it for BC at all only relief of symptoms. Any experiences out there? I would be willing to deal with the HMB if it will not help the PDD. Thanks in advance