I've never had my copper level checked that I know of. I think any kind of deficiency can cause an array of issues with people. We know that vitamin B12 deficiency can cause MS like symptoms and that a number of MSers are deficient in vitamin B12. Vitamin D deficiency can cause muscle aches and pains as well as fatigue. Magnesium deficiency can cause all sorts of symptoms. Each of these deficiencies can mimic MS and I'm sure there are lots more out there that can cause MS like symptoms.