Hmm...I know I have high copper. No one seems to know why (I don't have copper pipes nor old fillings in my mouth).
I found this out incidentally when they were testing me during ALS worry/scare...no one seems to care.... have bigger worries. My doctor said it is "incidental" but I never knew it could cause anxiety!
Yes, I know studies link high copper to various cancers - but they don't cause it and aren't a sign, according to my doctor.