Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Why does having anxiety drain some much of your energy #anxiety #sotired #needtosleepforhours
This tweet contains emotions: 
fear, pessimism, sadness