The song "Poison in My Blood" by Pxrepain tells the story of someone who feels overwhelmed by their struggles and the desire to escape from them. The lyrics express a feeling of being poisoned by their own thoughts and emotions, and the desperation to find a way out. The repeated refrain "Poison in my blood" emphasizes the feeling of being consumed by negativity and hardship. The song also touches on themes of isolation and the feeling of being trapped in a cycle of pain and suffering. The lyrics portray a sense of nihilism and indifference towards life, as the singer describes living each day as if they don't care about the consequences. Overall, the song conveys a sense of heavy emotional burden and the struggles of dealing with inner demons. The imagery of poison in the blood serves as a metaphor for the toxic emotions and experiences that the singer is trying to escape from.