Amalgam-Related Illness FAQ, Section 2 Symptoms 2. Tremor and gingivitis are not always present and usually not in milder forms. Tremor can cause alteration of the handwriting. The tremor is usually an intentional tremor.
Erethism is usually the first symptom to develop.
2.1.1 Symptoms are typically non-specific. The symptoms of mercury poisoning from chronic inhalation develop gradually and thus may be difficult to notice. No obligatory symptom exists. 2.1.3 A multi-symptomatic appearance is normal. One could even say that if a person only has one symptom it is not likely to be mercury-related.