What are some of the symptoms of mild poisoning?

The symptoms of mild poisoning often include headache, fatigue, and sore throat. These symptoms can result from various factors, such as exposure to toxins or chemicals, and indicate that the body is reacting to something harmful but has not yet reached a more severe level of poisoning. Headaches can arise from various toxins affecting the nervous system or causing dehydration, fatigue often stems from the body's efforts to combat the toxin, and a sore throat may develop if the poisoning involves inhalation of irritants or corrosive substances.

In contrast, vomiting is typically a symptom associated with more immediate, acute poisonings. Fainting and dizziness are often signs that might indicate a more serious reaction, which might require immediate medical attention. Therefore, the symptoms listed in the correct answer better characterize what one might expect in the initial stages of mild poisoning.