Review Question - QID 213656

A 25-year-old woman is brought to the emergency department by her friends. They found her acting differently at the local carnival and were concerned. The patient is usually healthy and is currently only taking fluoxetine. The patient states she feels excellent and is seeing "all the colors of this world" at the moment. She is currently eating dark chocolate and states it has "the richest flavor she has ever experienced". She also states that she can taste the physician's voice and that it also has a "rich and deep flavor." Her temperature is 99.2°F (37.3°C), blood pressure is 120/85 mmHg, pulse is 102/min, respirations are 16/min, and oxygen saturation is 100% on room air. Physical exam is notable for a patient who appears to be overly stimulated and hallucinating. She has sweaty skin and a poorly coordinated gait. The patient is observed for the next 8 hours, and her symptoms seem to self-resolve with no interventions. Which of the following is the most likely diagnosis?