When Your Brain Fabricates Traumatic Memories
False memory syndrome is not an official mental illness, yet it describes people who harbor vivid, unshakable memories of trauma that never actually occurred. These individuals sincerely believe their recollections, even when evidence proves otherwise.
This phenomenon often emerges when therapy or outside influence inadvertently plants details into a person's mind, causing them to build a false identity around them. Because the brain cannot distinguish these implanted memories from real experiences, the resulting emotional distress feels completely authentic. It is a striking example of how malleable human memory truly is. Psychology experts note that simply being told about an event can eventually convince a brain that it lived through it.
Source: False memory syndrome