selbektomism
The word selbektomism comes from German "selbe" meaning "self," Greek "ectomē" meaning "excision," and "-ism" meaning related to pathology. Selbektomism is the word used to describe the deep feeling of traumatic pain and brutal loss associated with potentially permanent damage to a person's sense of self.
Person 1: Ever since my cat died I feel like someone cut a fundamental part of myself out of me and shot it right in front of me. I wish there was a word for how I'm feeling.
Person 2: You're experiencing selbektomism. You're feeling selbektomistic.
Person 2: You're experiencing selbektomism. You're feeling selbektomistic.