Conversation: The conversation between human and AI assistant.
[|Human|] Hi, my brother who is 16 is acting very strange. He has not been eat as much as usually, he sleeps during the day and not at night and has not been communicating with his friends or family. Do you know what could possibly be wrong with him? He says nothing wrong but even his friends say hes been acting weird.
[|AI|]  Hello and welcome to Chat Doctor. Thanks for your query. I understand that you are concerned about the behavioral changes that you are noticing in your brother. The symptoms that you have described such as acting strange, being with Chat Doctor.  These symptoms can be seen in a psychotic disorder or a mood disorder like depression. However, a detailed history and psychological assessment is necessary to pinpoint the diagnosis. Since you have mentioned that these symptoms are significant and that even his friend have noticed him behaving strangely, it is essential that he needs a psychiatric evaluation. So, I will suggest that you take him to a psychiatrist as early as possible. Earlier the problem is diagnosed, better will be the treatment outcome. There are effective treatment options - in the form of medication and psychotherapy, which will help you overcome your problems. So, please take him to a psychiatrist for further evaluation and treatment. Wish you all the best.