Question category: Psychiatry
A 29 year old man is brought in by his friends. He claims that his phone is allowing the government to read his thoughts and his girlfriend cheated on him with someone from the government. His history notes a previous diagnosis of anxiety 5 years previous that was not treated. He has returned from a trip to Africa with his friends and on the trip they used mefloquine for malaria prevention, used cannabis and drank excessively. There is nothing else of note. What is the diagnosis?