If someone is unable to feel any emotions at all in their dream, that likely signifies a lack of awareness or attention which may be due to areas of the body being robbed of senses, for example such as inability to feel pain nor hunger. This may also symbolize a reluctance to experience emotions like fear and anger which indicate a weaker presence of your surroundings, or a weaker understanding of social norms.
Feeling emotionless in a dream, with no feelings or desires, can suggest that one is suppressing emotions. Also, lack of emotions in a dream implies self-care is desperately needed because people often feel they don’t deserve love, caring or happiness and will enter a state of emotional paralysis.