What are the symptoms of carbon monoxide poisoning?

Unfortunately, carbon monoxide poisoning symptoms are frequently overlooked because they’re like the flu. Here are several of the symptoms to be on the lookout for.

Lower exposure:

Headaches
Fatigue
Nausea

Increased exposure:

Severe throbbing headache
Drowsiness
Disorientation
Confusion
Accelerated heart rate

The highest exposure:

Unconsciousness
Convulsions
Cardiorespiratory failure
Coma
Death