Serious Effects
Carbon monoxide is colorless and odorless — invisible to the eye. This makes the gas a silent killer. When the body is exposed to it, the gas displaces oxygen in the blood, and this causes serious damage to the heart, brain, and vital organs.
Even a small exposure to CO can cause chest pains, fatigue, nausea, headaches, and vertigo. Some cases of CO poisoning even result in death. But how had she been misdiagnosed again and again?