Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: From My head to think it was better but obviously it's not #relapse #sadness #sickness #madness #misunderstanding
This tweet contains emotions: 
anger, disgust, pessimism, sadness