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: Having a baby born too soon is #lifechanging 6 years on and it feels like only yesterday #sad #happy  #emotionalrollercoaster
This tweet contains emotions: 
joy, love, sadness