You had 7 new mercury amalgams installed recently? That is not good. The tingling is likely from a magnesium, b12, or zinc deficiency. Molybdenum supplements(500 mcg or 1,000 mcg a day) can help reduce the chemical sensitivity.

http://www.ei-resource.org/articles/candida-and-gut-dysbiosis-articles/the-candida%10aldehyde-detox-pathway-and-the-molybdenum-connection/


http://www.flcv.com/cfsfm.html

Is your diet high in sugar? Do you drink?