Many mental health professionals consider BPD one of the most painful mental illnesses because of the sheer intensity of the emotions involved. Those with BPD don’t just feel sadness; they feel crushing despair. They feel the actual weight on their hearts; the breaking pain. They don’t just experience joy; they feel euphoria. Like being high without needing any substances. And they don’t just feel sadness, they feel like they are literally dying. Their emotions are turned up to an unbearable volume, making every interaction, every thought, and every moment feel overwhelming.