Dnester, you don't have to have DID to do parts work. Doing parts work doesn't mean you have DID. A person might. Or they might not. But parts work can be done with anyone. It is NOT specific to DID.

Doing parts work is just working with the different parts of self. Some might be hurt child parts that need soothing, some might be protectors that get angry or act... without as person even having DID or OSDD.

What I am trying to say is it is okay to do parts work whether you believe you have DID or not, whether you in fact have DID or not. That doesn't even matter, because everybody has parts of the self and can benefit from learning to work with those different parts of the personality.