Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: i swear to god the worst drug is loving someone. physical withdrawals aren't that bad, emotional withdrawals sting a little more
This tweet contains emotions: 
pessimism, sadness