<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing persistent vomiting for the last few days along with nausea and abnormal involuntary movements. What could be the reason?  <response>: Based on your symptoms, it seems like you have a condition called tardive dyskinesia, which is a side effect of long-term use of certain drugs that affect the brain. We will need to do further testing to confirm the diagnosis. 