Could I have ADHD? Understanding the signs in adulthood and when to seek an assessment- Guide
Could I have ADHD? Understanding the signs in adulthood and when to seek an assessment
If you are wondering whether you have ADHD, consider whether difficulties with attention, organisation, restlessness or impulsivity have been persistent, began in childhood and affect more than one part of your life. Recognising these patterns can be a reason to seek an assessment. It cannot establish a diagnosis on its own.
Key takeaways —> Download the full guide
ADHD can be recognised in adulthood, although symptoms begin in childhood.
Clinicians consider the persistence, context and impact of symptoms, alongside other possible explanations.
Being quiet, achieving academically or having coping strategies does not automatically rule out ADHD.
Screening questionnaires can indicate a need for further assessment; they do not provide a diagnosis.
Bring your questions and real-life examples to an appropriately qualified clinician.
What can ADHD look like in adults?
ADHD is a neurodevelopmental condition involving inattention, hyperactivity and impulsivity. Adult hyperactivity may involve restlessness rather than the more visible movement people associate with children.
In everyday life, difficulties may involve:
Tracking appointments and belongings: Losing track of scheduled commitments, misplacing everyday items or leaving tasks unfinished.
Sustaining attention: Difficulty staying focused during conversations, reading or routine work tasks.
Organising multi-step tasks: Struggling to sequence several steps and follow through to completion.
Managing time and procrastination: Repeatedly putting tasks off and misjudging how long things will take.
Sitting through long meetings: Finding it hard to remain comfortable and engaged during quiet or extended activities.
Impulsive speaking and acting: Waiting to speak, interrupting others or acting before fully considering consequences.
These experiences are described in the NIMH guide to ADHD in adults. They are not unique to ADHD, and recognising a few does not tell you whether you have it.
How is ADHD different from ordinary distraction?
Everyone can forget something or struggle to concentrate. In ADHD, symptoms form a persistent pattern that interferes with functioning across multiple settings. Clinicians consider whether symptoms have lasted at least six months and whether some were present before age 12. They also consider whether another explanation better accounts for the difficulties.
Why might ADHD have been missed when I was younger?
Some adults were not identified in childhood because their difficulties were not recognised, or because support and structure helped them manage. Increasing responsibilities can make existing difficulties more apparent.
A 2020 expert consensus paper discusses less obvious symptoms, gender stereotypes, co-occurring conditions and coping strategies that can conceal difficulties. Its findings help explain why assessment needs to consider individual circumstances; they do not mean that all women with attention difficulties have ADHD.
Could it be anxiety, stress or something else?
Sleep difficulties, stress, anxiety, depression and some physical health conditions can cause symptoms resembling ADHD. This is one reason an assessment needs to look beyond a checklist.
ADHD can occur alongside other conditions. Having an anxiety diagnosis, for example, does not automatically rule it out.
Can an online ADHD test tell me whether I have it?
A screening questionnaire can help identify whether further assessment may be useful. It cannot settle the diagnosis. If you have completed a questionnaire, bring the result and its source to your appointment. An AI response does not replace the developmental history, clinical judgement and consideration of other explanations involved in assessment.
When should I consider an adult ADHD assessment?
If recurring difficulties are affecting daily life and you want help understanding them, consider an assessment with your GP or a clinician experienced in adult ADHD.
Persistent across settings: Recurring difficulties at home, work or study.
Meaningful impact: Deadlines, finances, relationships or routines are affected.
You want clarity: You'd like to understand whether ADHD, another explanation, or both are contributing.
To make that conversation easier, prepare a short note covering:
The main difficulties you want help with.
Two or three recent examples and their consequences.
Any similar experiences you remember from childhood.
Strategies or support you already use.
What you hope to understand or change.
If you're worried about safety, severe distress or a sudden decline, seek urgent care. You don't need a perfect summary before asking for help.
What does an adult ADHD assessment involve?
Clinical interviews: Conversation about your experiences and current concerns.
Rating scales: Standardised questionnaires that complement the interview.
Developmental and health history: Information from childhood through adulthood, including relevant health context.
Everyday functioning: How things are going day-to-day at home, work or study.
With consent, input from others: Perspectives from people who know you, plus any available school or previous clinical reports.
Cognitive testing (if needed): Not required to diagnose ADHD, but may help clarify other concerns.
At Redefini, we offer ADHD assessments for adults as well as children and adolescents.
You are welcome to begin with uncertainty. "I recognise some of these experiences and would like to understand them" is a reasonable starting point.
Ready to Take the Next Step?
Reaching out does not commit you to anything. It's an opportunity to ask questions and find out whether Redefini Therapies is a good fit. Helpful to bring: your referral question, any existing reports, and questions about fees & availability.
What to Bring?
To help your testing session run smoothly, please bring the following items with you: Water and Snacks, Aids and Supports, Reports and Documents, and Comfortable Clothing.
Want the full picture?
This is just a glimpse. The complete guide also answers frequently asked questions, including: "Can I fail the assessment?", "Will I definitely receive a diagnosis?", and "Can my report be used for NDIS?"
👉 Download the full Understanding the signs in adulthood and when to seek an assessment— free guide.
Redefini Therapies provides psychological assessment and therapy for children, adolescents and adults. Areas of clinical focus include autism, ADHD, intellectual functioning, learning, executive functioning, emotional wellbeing and the practical effects of disability and neurodivergence.
📞 07 3506 0140 | ✉️ admin@redefini.com.au | 🌐 www.redefini.com.au