What are the signs and symptoms of carbon monoxide poisoning?
You may have no signs and symptoms at first. Early signs and symptoms may make you feel like you have the flu. If you are breathing in CO inside your house, you may feel better when you leave your home. Your signs and symptoms may worsen when you return and spend more time at home. How bad your symptoms are may depend on how long and how much CO you have breathed in. Your symptoms can range from mild to severe (very bad): • Immediate signs and symptoms: You may have any of the following soon after CO exposure: • Mild CO poisoning With small amounts of CO in your body, you may have: • Blurring of vision. • Dizziness. • Headache. • Upset stomach or throwing up. • Moderate CO poisoning As more CO gets into your body, you may have: • Breathing faster than normal or having trouble breathing. • Chest pain or fast heartbeat. • Fainting. • Feeling confused. • Feeling weak or having muscle pain. • Passing dark, red-colored urine. • Severe CO poisoning With a high level of CO in your body, you m
