Classify the emotions found in the tweet "From My head to think it was better but obviously it's not #relapse #sadness #sickness #madness #misunderstanding". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".
anger, disgust, pessimism, sadness