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: A3: But chronic sadness may mean there are underlying issues than getting sad occassionally over a particular issue (2/2) #mhchat
This tweet contains emotions: 
disgust, fear, pessimism, sadness