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Misdiagnosed Minds: How AuDHD Is Mistaken for Disorders Like DID, Schizophrenia, and Mania


Misdiagnosed Minds: How AuDHD Is Mistaken for Disorders Like DID, Schizophrenia, and Mania







Introduction

Many neurodivergent individuals, especially those with combined Autism and ADHD (AuDHD), are misdiagnosed or overlooked entirely. This is particularly true when symptoms present in ways that mimic more "severe" psychiatric conditions like Dissociative Identity Disorder (DID), schizophrenia, or mania. The truth is: AuDHD—especially when layered with trauma, sensory overload, or chronic stress—can look like something else entirely to the untrained eye. And the consequences of misdiagnosis can be devastating.

When the System Gets It Wrong

Take for example a woman who was diagnosed with DID. Her complex personality traits, shifting moods, emotional intensity, and internal dialogues were interpreted as separate identities. But upon closer inspection, these could also be expressions of masking, trauma-induced role adaptation, emotional dysregulation, and sensory overwhelm—common in women with AuDHD. Her diagnosis may reflect how deeply misunderstood the neurodivergent mind still is.

In my own experience, seeking help resulted in health professionals accusing me of being manic, when I was merely trying to articulate complex ideas and injustices—through an AuDHD lens they did not understand. Their inability to see past their own clinical models meant my AuDHD, and the CPTSD that emerged from years of trauma and misrecognition, were dismissed as psychiatric pathology. 

Meena Boppana, an educator and autistic advocate, said: "at the age of 29, I was diagnosed with both autism and ADHD, sometimes referred to as “AuDHD” and noted "The interplay of autism and ADHD led to both diagnoses going under the radar for decades. For the majority of my 20’s, like many other late-diagnosed neurodivergent folks, I was misdiagnosed with bipolar disorder. My lack of coping strategies resulted in frequent meltdowns and emotional distress. However, the bipolar diagnosis never seemed to fit, as my mood could change dramatically in a matter of hours, not weeks. Ultimately, I was only formally diagnosed with AuDHD following a self-diagnosis based on content on my TikTok newsfeed.".

The Schizophrenia Connection

There are many documented cases where highly sensitive or gifted neurodivergent people were misdiagnosed with schizophrenia. My uncle, for example, was described as gifted but emotionally intense, and he ended up institutionalized with a diagnosis of  schizophrenia. Today, in hindsight, his behaviors resemble what we now recognize as autistic traits mixed with ADHD-like bursts of energy, obsession, and confusion under stress.

Another case I saw on television told the story of a man who spent years with an incorrect diagnosis of paranoid schizophrenia—only to later be reevaluated and found to be AuDHD. In Hazel Stubbs Races’ story, the fact that her son Kenneth was misdiagnosed with paranoid schizophrenia—only to later be correctly identified as likely having autism and ADHD (AuDHD)—is a profound illustration of how diagnostic errors can lead to decades of unnecessary suffering. https://interestdrivenbrain.blogspot.com/2025/05/rediagnosis-with-audhd-after-missed.html

Why It Happens

  • Many clinicians are not trained in how neurodivergence, especially AuDHD, presents in adults
  • Women are especially prone to misdiagnosis due to masking and internalizing symptoms
  • Trauma (including from childhood or systemic neglect) can compound and obscure the neurodivergent traits
  • People with AuDHD often show intense emotional expression, rapid speech, tangential thinking, or dissociation—traits that may be pathologized as mania, BPD, or DID

Connected Conditions: The Neuroimmune Overlap

Emerging evidence shows a high overlap between neurodivergence and conditions such as:

  • Fibromyalgia
  • Chronic fatigue syndrome (CFS/ME)
  • Allergies and asthma
  • Autoimmune dysregulation

These conditions are often co-expressed in sensitive nervous systems—what some researchers are beginning to call “neurocomplexity.”

Reclaiming the Narrative

It's time we stop assuming that complex minds are broken ones. Misdiagnosis doesn't just lead to wrong treatments—it leads to disempowerment, stigma, and sometimes lifelong institutional trauma. The stories of various AuDHD people point to a systemic failure: a medical model that doesn't yet have a framework for the full spectrum of neurodivergence.

Conclusion

AuDHD is real. It’s underdiagnosed. And it’s too often misunderstood. It is time for the mental health system to catch up—to replace misdiagnosis with deep listening, curiosity, and frameworks informed by trauma and neurodiversity. Only then can we prevent brilliant, sensitive, divergent minds from being lost to misunderstanding.


References and Suggested Reading

  1. “An Introduction to AuDHD | Embrace Autism.” Accessed June 18, 2025. https://embrace-autism.com/an-introduction-to-audhd/.

  2.  Meena Boppana, M.Ed., The AuDHD Paradox. AANE https://aane.org/autism-info-faqs/library/the-audhd-paradox/ (2024). Meena Boppana was undiagnosed and then misdiagnosed with bipolar disorder in her 20's and correctly diagnosed with AuDHD at age 29.

  3. “Autism and ADHD Have Distinct Brain Connectivity Signatures, Study Finds.” Accessed June 18, 2025. https://medicalxpress.com/news/2025-05-autism-adhd-distinct-brain-signatures.html.

  4. Norman, Luke J., Gustavo Sudre, Marine Bouyssi-Kobar, Megan Jiao, Stevi Gligorovic, Jenny Jean, Tonya White, and Philip Shaw. “Cross-Sectional Mega-Analysis of Resting-State Alterations Associated with Autism and Attention-Deficit/Hyperactivity Disorder in Children and Adolescents.” Nature Mental Health 3, no. 6 (June 2025): 709–23. https://doi.org/10.1038/s44220-025-00431-5.

  5. Roland van Rensburg, Helgard Pieter Meyer, Sonia Anne Hitchcock, Christian Edward Schuler, Screening for Adult ADHD in Patients with Fibromyalgia Syndrome, Pain Medicine, Volume 19, Issue 9, September 2018, Pages 1825–1831, https://doi.org/10.1093/pm/pnx275

  6. “Mum Devastated after Finding Son She Gave up for Adoption an Alcoholic Living on the Streets - 9Honey.” Accessed May 26, 2025. https://honey.nine.com.au/latest/mum-gave-son-up-adoption-found-him-homeless-alcoholic/1dd59e75-28c9-4656-92ed-9354e45a0b24.

  7. The Sun. “Mum Heartbroken after Learning Son She Gave up for Adoption Became Homeless Alcoholic,” August 6, 2019. https://www.thesun.co.uk/fabulous/9667837/mum-son-adoption-homeless-alcoholic-long-lost-family/

  8. Au-Yeung, S. K. et al. Experience of mental health diagnosis and perceived misdiagnosis in autistic, possibly autistic and non-autistic adults. Autism 23, 1508–1518 (2019). https://doi.org/10.1177/1362361318818167

  9. Enright, J. My AuDHD Was Misdiagnosed as a Personality Disorder. Neurodiversity MB https://twoemb.substack.com/p/women-are-more-likely-to-be-misdiagnosed (2021).

  10. “I still can’t forget those words”: mixed methods study of the persisting impacts on patients reporting psychosomatic and psychiatric misdiagnoses. https://apps.crossref.org/pendingpub/pendingpub.html?doi=10.1093%2Frheumatology%2Fkeaf115 doi:10.5555/12345678.

  11. Cambridge, U. of. Autoimmune diseases misdiagnosed as psychosomatic can lead to long-term damage to physical and mental well-being. https://medicalxpress.com/news/2025-02-autoimmune-diseases-misdiagnosed-psychosomatic-term.html.

  12. “Bipolar Disorder | APS.” Accessed June 23, 2025. https://psychology.org.au/for-the-public/psychology-topics/bipolar-disorder.

  13. Barkley, R. A., Benton, C. M. (2010). Taking Charge of Adult ADHD. United Kingdom: Guilford Publications.

  14. Cults to Consciousness. (173) The Harms of Undiagnosed Autism in a Strict Catholic School - YouTube. https://www.youtube.com/watch?v=svov8yehANg (2024). 

  15. What It Feels Like Living with Undiagnosed ADHD. ADDitude https://www.additudemag.com/slideshows/what-undiagnosed-adhd-feels-like/ (2016). 

  16. Robins, B. I Feared I Had Alzheimer’s. It Turns Out It Was Undiagnosed ADHD. ADDitude https://www.additudemag.com/do-i-have-alzheimers-undiagnosed-adhd/ (2022). 

  17. 4 Giant Ways To Tell If You Have Undiagnosed Adult ADHD. YourTango https://www.yourtango.com/health-wellness/giant-ways-tell-undiagnosed-adhd (2023).

  18. French, B., Daley, D., Groom, M. & Cassidy, S. Risks Associated With Undiagnosed ADHD and/or Autism: A Mixed-Method Systematic Review. J Atten Disord 27, 1393–1410 (2023). https://doi.org/10.1177/10870547231176862
  19. Fusar-Poli, L., Brondino, N., Politi, P. & Aguglia, E. Missed diagnoses and misdiagnoses of adults with autism spectrum disorder. Eur Arch Psychiatry Clin Neurosci 272, 187–198 (2022). https://doi.org/10.1007/s00406-020-01189-w

  20.  Enright, J. My AuDHD Was Misdiagnosed as a Personality Disorder. Neurodiversity MB https://twoemb.substack.com/p/women-are-more-likely-to-be-misdiagnosed (2021).

  21. Cults to Consciousness. (173) The Harms of Undiagnosed Autism in a Strict Catholic School - YouTube. https://www.youtube.com/watch?v=svov8yehANg (2024). 

  22. Yerys, B. E. & Ph.D. AuDHD: ADHD and Adult Autism Symptoms, Diagnosis & Interventions for Both. ADDitude https://www.additudemag.com/adult-autism-symptoms-adhd/ (2021). 

  23. Kennedy, D. The ADHD-Autism Connection: A Step Toward More Accurate Diagnoses and Effective Treatments. (PRH Christian Publishing, 2009).

  24. Gellini, H. & Marczak, M. “I Always Knew I Was Different”: Experiences of Receiving a Diagnosis of Autistic Spectrum Disorder in Adulthood—a Meta-Ethnographic Systematic Review. Rev J Autism Dev Disord 11, 620–639 (2024). https://doi.org/10.1007/s40489-023-00356-8

  25. Adult, Accomplished, Autistic: The Late Diagnosis Diaries | Psychology Today Australia. https://www.psychologytoday.com/au/blog/positively-different/202306/adult-accomplished-autistic-the-late-diagnosis-diaries.

  26. Making Sense of the Past as a Late-Diagnosed Autistic Adult | Psychology Today Australia. https://www.psychologytoday.com/au/blog/living-neurodivergence/202307/making-sense-of-the-past-as-a-late-diagnosed-autistic-adult

  27. Hiatt, L. Spotted with AuDHD: Seeing Yourself in a Mentor Who Sees You. Autism in Adulthood 7, 127–129 (2025)https://doi.org/10.1089/aut.2024.0074






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