Root Canal or Tooth Extraction and Health.  Does any doctor have an opinion regarding chronic health problems? I had a root canal in 1998.  Retreatment one month ago  The infection was prfound.  I thought I would feel better after the root canl.  Ringing in my ears for over six months and thought that the root canal would help alleviate the problem. I also have had muscular pain in right arm (which is the side of the molar in question.   The MD prior to the root canal thought I had fibromyalgia.  When the infection was released I immediately felt better.  However, I did get worse healthwise since the infection was outside the tooth..  I have had dizzy spells and some cognitive problems.  There is so much on the internet regarding controversies in root canals and its impact on your overall health.  I do not know whether to finish the root canal procedure or have my tooth pulled.  The endodontist indicated that a resdiual infection can take as long as two years to rid itself from the body.  I have read about the mercury problem in root canals.  Are their any professionals who can offer opinions?

Summarized question: Can a root canal cause chronic health problems like ringing in the ears and muscular pain in the right arm?