Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Have the producers of @soverybritish ever been outside of their country? These are universal problems. #worldwide #anxiety
This tweet contains emotions: 
fear