I forgot to mention, that my friend that is seeing Dr. Rea, an environmental Dr. in Texas, told me that he said that the balance problem is because you are toxic. That is why they do the "walk the line" test to see if someone is drunk. It isn't the alcohol, but the fact that the person has become "intoxicated". I told my husband a few years ago that if I was an alcoholic my symptoms would make sense. I don't drink at all, but have chronic intoxification from the mercury.