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: My #Fibromyalgia has been really bad lately which is not good for my mental state. I feel very overwhelmed #anxiety #bipolar #depression
This tweet contains emotions: 
fear, sadness