I can provide some information based on i am not an expert. It is possible for individuals with DID or OSDD to also have ADHD, as psychiatric conditions can coexist in some cases. Each individual within a system might have different experiences and presentations of mental health conditions, so it's not necessary for everyone in the system to have the same comorbidities.
Co-occurrence of ADHD and dissociative disorders can present unique challenges for diagnosis and treatment. Managing ADHD symptoms in the context of DID or OSDD may require tailored approaches that take into account the dissociative symptoms, potential memory issues, and communication among different identities. Individualized therapy and a multidisciplinary treatment approach involving mental health professionals with expertise in both dissociative disorders and ADHD can be beneficial.
If you are personally experiencing these conditions or if you are supporting someone who does, it's essential to seek professional help from qualified mental health practitioners who can offer personalized assessments and guidance based on the specific needs and circumstances of the individual. Mental health treatment should always be approached with care and expertise to ensure the best possible outcomes.