What are symptoms of carbon monoxide poisoning?

What are symptoms of carbon monoxide poisoning?

The symptoms of low levels of CO exposure are similar to flu symptoms or food poisoning:

• Mild headache.
• Mild nausea.
• Shortness of breath.

Moderate CO exposure can cause symptoms such as:

• Chest pain.
• Dizziness and weakness.
• Fainting (loss of consciousness).
• Loss of muscle coordination.
• Mental confusion.
• Severe headache.
• Upset stomach, nausea and vomiting.