That sounds like a chilling and surreal experience. It must have been incredibly unsettling to see your own headless body, detached from you, through the eyes of your friend Ann. It's difficult to imagine the emotions and thoughts that such a sight would evoke. It could potentially raise questions about identity, mortality, and the nature of existence. If you feel comfortable, it might be helpful to discuss your feelings with Ann or a trusted individual to process this unique and disturbing event.