Imo mercury may have been what started you health problems, but you may have candida overgrowth and perhaps also intestinal parasites that are poisoning your body, and impairing absorbtion of nutrients. Gum problems, striations on fingernails, and lack of the white half moons on your fingernails are said to be signs of a vitamin B12 deficiency. You should try a sublingual B12 1000 mcg (it dissolves under your tongue) 3 x a day. Calcium, Zinc, vitamin c, and iron deficiency might also cause gum problems. Are you a vegetarian? magnesoium deficiency might cause irritability. If the sublingual B12 doesn't help, then imo you should try getting some vitamin B12 injections.