From the tweet "I feel ghastly and I'm really hoping it's just a post-birthday slump. Back to full research mode tomorrow either way.", identify which emotions are conveyed. Choose from anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, and trust. If no emotions are evident, respond with "neutral or no emotion".
anticipation, disgust, fear, optimism, sadness