My mother has 62 years. Her problem is she is hearing two person's voices, They are telling something about her like that. Everyday she is replying to those unknown voices(her two person's voice) loudly and sometimes using bad words. She is perfectly alright. Suddenly she start to scold and shout, she is telling the reason that she is hearing some people are talking about her. But we are not hearing anything. This is an issue. I am hearing this from my mother from my childhood days itself. Is there any mental issues or what's happening I don't know.. Please help..