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: If my concerns &amp; anxiety don't matter to you then I shall return the favor. #EyeMatter
This tweet contains emotions: 
anger, fear