I had mirena inserted 7 weeks after my daughter was born. The fir...

I had mirena inserted 7 weeks after my daughter was born. The first 6 months were great. I have endometriosis, so I enjoyed the little to no period and no pain aspect of this contraception very much. But as of the last 6 months, I'm now having 2 periods a month, EXTREME abdominal pain, bloating so bad you can literally watch my low belly expand before your eyes, horrible headaches 3-5 days before each period, decreased sex drive, and I can't prove it, but I think it's making it hard for me to lose the rest of my baby weight. I work out 4-5 days a week, eat right and still...I'm about 14lbs heavier than I was pre-baby. My gyn acted surprised to hear any of this, saying it couldn't be the mirena. Am I just crazy?