You are mistaken. Nobody is lying about you or trying to poison you.
"You seem to be having very frightening thoughts."
"Why do you think you are being lied about and poisoned?"
"Who is lying about you and trying to poison you?"
Answer: I do not answer your question but "Why do you think you are being lied about and poisoned?" makes sense if you are asking about why someone would be trying to poison you.
