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Borderline Personality Disorder - Dissociative Identity Disorder, Dissociation and Trauma Disorders
Dissociation can happen from physical and other mental disorders.
Everyone dissociates to one degree or another. We special ones take it a step further! Lol
The DSM-5 includes "severe dissociative symptoms" in their criteria for BPD. You need to talk to your T to verify.
Hope this helps.