Low level symptoms of CO poisoning are similar to flu symptoms, such as headaches, drowsiness, lack of energy and muscular weakness, chest pains and nausea.
Also, unexplained sickness, diarrhoea or stomach pains can be experienced.
Watch out for:
Mild headache.
Dizziness.
Nausea.
Vomiting.
Fatigue.
Drowsiness.
Coma and death.
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