We explore how the sensation of an emotion lasting "forever" serves as a critical signal of an emotional flashback, indicating that the nervous system is recalling a past trauma rather than simply responding to the current moment. This experience occurs because a flashback collapses the sense of time, fusing the present with an older emotional imprint, which causes reactions to feel intensely amplified. Because the overwhelming feeling originates from the perspective of a child who lacked the capacity to anticipate relief, the brain often attempts to justify the intensity by constructing stories about present circumstances, initiating a self-perpetuating loop of emotion and narrative. Recognizing this "forever" signal allows one to name the experience as a flashback, remind oneself of current safety, and allow the emotion to pass without building a reinforcing story around it.