Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: i had a hard time falling a sleep and woke up several times because i was afraid of bugs crawling on me and i ended up waking up with a bite
This tweet contains emotions: 
fear, sadness