There is a disorder in some people where the body excretes zinc and B6 rather than utilize them. I have fibromyalgia and tested postive for this disorder at the Health recovery Center in Mpls. It might be of interest for others to get tested(a urine test)to see if there is a connection. Do some research into this; it may be of help to others with fibromyalgia. There is a vitamin regimin to take but I am awful about being disciplined enough to stay with it. Hope this will help others.