I'm sorry I don't know anything about the normetanephrine issue, but I wanted to tell you about a lyme friend of mine that also gets anxiety. She found out that food allergies/multiple chemical sensitivities can "act up" and trigger anxiety. Also, bartonella and yeast flares can trigger it. Lyme/coinfections are so complicated, it's so hard to figure out what is causing what! My friend does suffer from adrenal fatigue too, so this can also complicate things.
I am sorry you are suffering and hope things get better for you soon. Best wishes, bablymers mom