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: Panic attacks are the worst. Feeling really sick and still shaking. I should be a sleep.  #depression
This tweet contains emotions: 
fear, sadness