Task: Analyze the tweet's emotional connotations and classify 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 best portray the tweeter's mental state.
Tweet: What do I do with my heart that is trembling by just the thought of it?\nI really don’t know what love is
This tweet contains emotions: 
love, sadness