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: God, I've been so physically weak the whole day. So much shaking :(
This tweet contains emotions: 
fear, pessimism, sadness