Successful but Exhausted? Six Experts on ADHD Missed Until Adulthood

For decades, the face of attention-deficit/hyperactivity disorder (ADHD) was a little boy who couldn’t sit still in class. But many adults, particularly women, grew up with ADHD that no one recognized. They daydreamed quietly, worked twice as hard to keep up, or were treated for anxiety and depression while the underlying pattern went unnoticed.

The Educated Patient asked six experts the same four questions about adults diagnosed with ADHD later in life: why they were missed, what a proper evaluation involves, how ADHD differs from conditions that look similar and what effective treatment looks like.

Why are so many adults, particularly women, missed in childhood, and what prompts them to seek an evaluation later?

Schools and clinicians have traditionally been better at spotting the disruptive child than the one who struggles quietly, said Deeksha Dhameja, M.B.B.S., MRCGP, a U.K.-based general practitioner and neurodiversity clinician who was herself diagnosed with ADHD as an adult, after becoming a doctor. She pointed to a 2020 expert consensus published in BMC Psychiatry, which found that the gap between the number of male and female individuals diagnosed with ADHD is likely due, at least in part, to girls and women not being recognized or referred.

Girls and women are more likely to have inattentive or internalized symptoms, said Wildaliz Caro, Ph.D., a medical contributor at Aura Recovery Center in Scottsville, Kentucky. Fidgeting may show up as hair twirling or nail biting, added Ksenia Ustinova, LCSW, a certified Brainspotter and founder and psychotherapist at Root & Return Therapy.

Many women also compensate through perfectionism, overpreparing and endless lists, said Adria Hagg, LCSW, founder and psychotherapist at Shiloh Hill Counseling. “One thing I wish more people understood is that being successful doesn’t rule out ADHD,” she said.

Those strategies often stop working when demands increase. Ustinova described a student leaving a structured home and school routine for college, where suddenly everything depends on their own executive functioning. Careers, parenting and hormonal changes during perimenopause can have the same effect, Dhameja and Hagg said. A 2025 population-based study found that women with ADHD were more likely to have severe perimenopausal symptoms and tended to experience them at younger ages than women without ADHD. Some parents also recognize themselves after their child is diagnosed.

“Often, the demands of adulthood have finally exceeded the person’s ability to compensate for challenges that were always present,” said Harry M. Voulgarakis, Ph.D., BCBA-D, a licensed clinical psychologist, board-certified behavior analyst and associate professor at St. Joseph’s University, New York.

What does a thorough ADHD evaluation look like, and how does it differ from an online screening?

“A thorough evaluation is a developmental investigation, not a score from one questionnaire,” said Carolina Estevez, Psy.D., a clinical psychologist at Soba New Jersey.

Clinicians look for evidence that several symptoms were present before age 12, show up in more than one setting and cause meaningful impairment, Estevez and Caro explained. The National Institute of Mental Health (NIMH) notes that ADHD can be diagnosed in adulthood, but symptoms must have started in childhood. A detailed interview should cover childhood, school and work history, relationships, sleep, substance use, trauma, medical issues and other mental health symptoms. With permission, school records or input from someone who knew the person as a child can help.

“There is no single blood test, brain scan, computer task or online quiz that establishes adult ADHD,” Caro said. Rating scales and screeners such as the Adult ADHD Self-Report Scale, developed with the World Health Organization, can be useful starting points. But even its developers describe it as a screening tool rather than a diagnostic test. Neuropsychological testing may help in complex cases but isn’t required for everyone, Voulgarakis added.

Dhameja said a good evaluation asks not just whether someone manages a task, but how. “Someone might never miss an appointment because they’ve set six reminders,” she said. She noted that the U.K.’s National Institute for Health and Care Excellence guidance states rating scales alone can’t diagnose ADHD.

Social media has given many adults language for their experiences, Hagg said. “But identifying with a few ADHD videos isn’t the same as receiving a diagnosis.”

Ustinova cautioned that red flags for an inadequate evaluation include relying on brief checklists without a full developmental history.

How do clinicians distinguish ADHD from anxiety, depression or burnout, and how does that shape treatment?

These conditions can look remarkably similar, with forgetfulness, poor concentration and procrastination common to all of them, Voulgarakis said. The key difference is timing. ADHD reflects a long-standing pattern that begins in childhood, while depression often marks a change from someone’s usual functioning, with low mood or loss of interest. With anxiety, attention may be consumed by worry, Estevez explained. Burnout is a descriptive term rather than a formal diagnosis, so clinicians still need to find what’s driving the exhaustion, Caro said.

Caro recommends mapping when each symptom began, what makes it better or worse and which problem is most urgent now.

The conditions also often overlap. Years of missed deadlines and forgotten responsibilities can lead to anxiety. “Sometimes anxiety isn’t the primary problem. It’s the result of spending years trying desperately to keep up,” Hagg said. Ustinova described ADHD-related anxiety as often secondary, stemming from the stress of managing unaddressed symptoms. Sleep is another important piece. NIMH reports that sleep problems affect up to 70% of adults with ADHD.

Dhameja said clinicians should be careful not to explain every difficulty through ADHD either. “My approach is to ask whether we’re seeing the original difficulty, its consequences or two separate conditions occurring together,” she said. That distinction determines whether someone needs ADHD treatment, mental health support or both.

Beyond medication, what does effective treatment look like, and what should newly diagnosed adults know?

Medication can help, but it doesn’t teach time management or undo years of negative self-beliefs, Hagg said. Dhameja calls this combination “pill” and “skill,” and Ustinova offered a similar analogy. Medication is a flashlight that lights up the immediate path in a dark forest, while therapy and personalized systems provide the map.

Estevez, Caro, Hagg and Voulgarakis all pointed to ADHD-focused cognitive behavioral therapy (CBT) to help with planning, procrastination and self-criticism, and a 2017 meta-analysis found CBT improved both ADHD symptoms and day-to-day functioning in adults. Ustinova, meanwhile, finds that acceptance and commitment therapy (ACT), combined with body-based approaches such as Brainspotting, can be a better fit for some adults who find reframing thoughts frustrating. Voulgarakis noted that acceptance- and mindfulness-based approaches can also help. Hagg encourages what she calls “mindfulness on the fly,” brief moments of awareness built into activities people already do.

Practical supports the experts recommended include a single visible planning system, breaking projects into short steps, placing reminders where action happens, automating recurring tasks and, when appropriate, workplace or school accommodations. The Job Accommodation Network, funded by the U.S. Department of Labor, offers free guidance on ADHD-related workplace accommodations.

“Needing external structure is a legitimate treatment strategy, not evidence of laziness or a lack of effort,” Estevez said.

Every expert emphasized the emotional side of a late diagnosis. Relief often comes alongside grief, anger or sadness about years spent believing struggles were personal failings. “Progress after diagnosis is rarely immediate or linear,” Voulgarakis said.

Dhameja encourages people not to feel pressured to change everything at once. “A diagnosis isn’t a new identity,” she said.

Hagg agreed. “A late ADHD diagnosis doesn’t change who you are. It can change the story you’ve been telling yourself about who you are.”

Where to find support

If you think you may have ADHD, talk with a health care professional about a comprehensive evaluation. The CDC offers resources for adults with ADHD, and CHADD’s National Resource Center on ADHD runs a helpline at 1-866-200-8098 staffed to answer ADHD questions.