In John Mellencamp's song "Worn Out Nervous Condition," the singer expresses his emotional state of being overwhelmed and anxious due to a troubled relationship. He describes feeling worn out and nervous specifically because of this person, who seems to have changed their attitude towards him. The lyrics suggest that initially, the singer and this person were enjoying their time together, walking in the sun and having fun. However, something has changed, and now whenever they kiss, this person seems distant or uninterested, giving the singer "the cheek" instead of reciprocating affection. The singer's confusion and frustration are evident when he says, "And I don't know what to do." He feels helpless and uncertain about how to handle the situation, which adds to his nervousness and worn-out state. The mention of a miracle in the person's voice implies that there was something special and remarkable about their connection. However, this miracle seems to have disappeared, leaving the singer in a desolate state. He fears being alone, as he says, "What am I gonna do here by myself? I'm so afraid of being all by myself." The chorus emphasizes the plea for the person to "go ahead and break my heart" because it seems that their actions have already brought the singer to a point of heartbreak. He acknowledges that it is now their time to do so, as they seem to have the power to shatter his emotions completely. Overall, "Worn Out Nervous Condition" captures the emotional turmoil and confusion that come with a deteriorating relationship. The lyrics reveal the singer's struggles with his feelings of anxiousness, weariness, and longing for a resolution.