you said yourself that healthy multiples don’t have symptoms. you need to have extreme dissociative symptoms in order to be multiple. that’s literally how multiplicity works.

No, you have to have extreme dissociation symptoms in order to be diagnosed DID. That’s not the same thing. DID is the medical term for an experience which includes multiplicity, which is not, itself a medical term.

All DID sufferers experience multiplicity, but not all multiples experience DID.