Read the following context and answer the question.
Context: I have this massive headache today . I have n't eaten much ... which is good . I do n't even feel hungry . I do feel nauseated , as in if I move I might vomit .... it 's probably all the food I ' ve been binging on lately .
Question: What may be the reason for their illness ?
Answer:


They had been eating too much food lately .