Symptoms of metal toxicity include stomach pain, nausea, diarrhea, numbness and tingling sensations, according to the Office of Rare Diseases Research. Different types of metal poisoning exhibit different symptoms.
Arsenic poisoning can cause headaches, fever, tiredness, disorientation and convulsions, reports the National Organization for Rare Disorders. Individuals who suffer from arsenic toxicity may feel weak and achy, and they may notice unusual hardening, pigmentation and inflammation of the skin. Excessive exposure to mercury can result in coughing and a tight or painful feeling in the chest. It can also lead to disorientation, amnesia, abnormal movements, impaired vision and hearing loss.
Individuals with lead poisoning can become more easily irritated and less active than usual, states NORD. They may also experience constipation, loss of coordination and seizures. Overexposure to cadmium can produce headaches, stomach cramps, breathing difficulties and an elevated heart rate. Chromium toxicity can cause diarrhea, vomiting and shock, while cobalt poisoning can result in a ringing in the ears, enlarged thyroid glands, appetite loss and respiratory problems. Manganese toxicity can cause pneumonia, and individuals may exhibit stiff and awkward movements as well as spasms and tremors.
Symptoms of phosphorous toxicity include droopy eyelids, weak muscles, vomiting and wheezing, according to NORD. Individuals may produce more sweat or saliva than usual. Thallium poisoning can cause sleepiness, uncoordinated movements, hair loss and eye problems. The individual may vomit, and there may be blood in the regurgitated contents.