Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: Panic attacks are the worst. Feeling really sick and still shaking. I should be a sleep. #anxiety #depression
This tweet contains emotions: 
fear, sadness