Anti-Mullerian Hormone Level

I just received the results of my AMH test... It's showing a data value of 15.46 ng/mL. Isn't this really high? I'm waiting on my nurse to call me back with info on this... And I still have not been officially diagnosed with PCOS. I'm struggling with fertility and headed into my second round of Clomid with Provera. I've also been prescribed Metformin in the past, but was told to discontinue use because I didn't feel any different while taking it. Am I doomed? I feel like I'm being pulled in 5 different directions. We just want our 2nd child. :(