question: Hi!I have been feeling sick for quite some time, fatigued, lethargic, and dizzy.  I switched dentists and went to my annual check up during this evaluation the dentist recommended to have one of my amalgam fillings removed, to which I agreed.  When the dentist removed the filling, she found pieces of cotton and metal in the tooth that had been left there, decomposing for more than ten years.  The dentist prescribed antibiotics for a possible infection.  I wonder if my body has been fighting a tooth infection for some time and how that has affected my health.  Also, I would like to know how to boost my immune system.