I found some info sites for you-
http://copperinfo.com/health/deficiencies.html
http://www.merck.com/mmhe/sec12/ch155/ch155c.html
http://www.diagnose-me.com/cond/C542179.html
http://www.nlm.nih.gov/medlineplus/d...nt-copper.html
http://www.healthvitaminsguide.com/minerals/copper.htm

If you don't figure out how it happened and it happens again - you might try Naturopath or Homeopathic care.
http://www.naturopathic.org/
http://www.holisticmed.com/www/naturopath.html
http://www.holisticmed.com/
http://www.homeopathic.com/articles/finding_care/
http://nationalcenterforhomeopathy.org/