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Symptoms
By Mayo Clinic staffSymptoms of carbon monoxide poisoning may include:
- Dull headache, the most common early symptom
- Dizziness
- Nausea
- Vomiting
- Chest pain
- Confusion
- Irritability
- Impaired judgment
- Loss of consciousness
Carbon monoxide poisoning can be especially dangerous for people who are sleeping or intoxicated. The fumes may be fatal before they realize there's a problem.
