Late Diagnosis Starter Kit: ADHD, Autism and AuDHD
Diagnosed with ADHD, autism or both (AuDHD) as an adult? Welcome. You’re not broken, lazy or “too much”: you’ve been running a different operating system without the manual. Here’s the manual, or at least the quick-start guide.
- First feelings are all valid: relief, grief, anger at the lost years, imposter syndrome, all in the same afternoon.
- Nothing has to change overnight. The diagnosis is information, not a sentence.
- ADHD has effective medicines; autism doesn’t need “treating”, but the things that come with it (anxiety, sleep, burnout) do.
- Your best tools are boring and brilliant: sleep, routines, external reminders, and fewer things that drain you.
Congratulations, you’ve unlocked the explanation for your entire personality. Please don’t rewrite your whole life by Tuesday.
The first 30 days
- Read, but don’t binge. Pick 2–3 trusted sources (below). Social media is great for “oh, that’s me!” and terrible for medical facts.
- Write your “brain owner’s manual”. What drains you, what recharges you, your sensory no-gos, your best and worst times of day.
- Book a follow-up with your GP to plan treatment and support, and to check sleep, mood, iron, thyroid and anything else that’s been ignored.
- Decide who to tell, if anyone. You don’t owe anyone your diagnosis. Telling a few safe people first is a good test run.
ADHD: medication, honestly
- Stimulants (methylphenidate, dexamfetamine, lisdexamfetamine) help about 7 in 10 adults. They’re started low and adjusted over weeks.
- Non-stimulants (atomoxetine, guanfacine) are options when stimulants don’t suit.
- Expect some trial and error with dose, timing and brand. Track sleep, appetite, mood, heart rate and blood pressure.
- Good medication feels like “finally, a quiet desk”, not a buzz. If you feel wired, flat or like a robot, the dose or medicine needs changing.
- Stimulants are controlled (Schedule 8) medicines with state rules on who can prescribe. Carry your script details when travelling.
- Driving: stable, well-treated ADHD usually makes driving safer. Check with your doctor if you’ve had problems.
Methylphenidate · Dexamfetamine · Atomoxetine · Guanfacine
Autism: support, not a cure
- There’s no medicine for autism itself, and it doesn’t need one.
- What helps: understanding your sensory and social energy budget, fewer masking marathons, routines that protect recovery time, and treating anxiety, depression or sleep problems if they’re there.
- An occupational therapist can help with sensory and daily-living strategies; a neurodiversity-affirming psychologist can help with burnout, anxiety and self-understanding.
Your starter toolkit
- External brain: one calendar, alarms for everything, visible to-do lists, “launch pad” by the door for keys, wallet and meds.
- Body doubling: doing boring tasks alongside someone else (in person or online). Weirdly effective.
- Sensory kit: noise-reducing earplugs, sunglasses, soft layers, a fidget, a “leave early” plan.
- Energy accounting: socialising, masking and noise cost energy. Budget it like money and schedule recovery.
- Make it easy: automate bills, subscribe-and-save essentials, simplify wardrobes and meals. Willpower is not a strategy.
- Sleep first: regular wake time, screens down earlier, light in the morning. Everything is harder tired.
Work and study
- Employers and education providers must make reasonable adjustments under disability discrimination law, if you choose to disclose.
- Common adjustments: written instructions, quiet space or headphones, flexible hours, fewer open-plan days, clear deadlines, regular check-ins.
- University disability services can give extensions, exam adjustments and note-taking support.
Watch for
- Burnout: exhaustion, loss of skills and shutdowns after long periods of masking or overload. Rest and reducing demands help; it isn’t laziness.
- Co-occurring conditions: anxiety, depression, eating problems, substance use, sleep disorders, hypermobility and POTS are more common. Mention them.
- Thoughts of self-harm are more common in neurodivergent adults. Please reach out: Lifeline 13 11 14, 13YARN 13 92 76, or 000.
Save your money
- Supplement stacks and “ADHD diets”Omega-3 has a tiny effect at best; elimination diets and supplement bundles mostly sell hope.
- Neurofeedback and brain-training appsWell-blinded trials show little or no benefit over sham.
- Quick online “diagnoses” with no proper assessmentA good assessment includes your history, a collateral history and co-occurring conditions. Cheap and fast can mean wrong.
- Anything promising to “cure” autismChelation, bleach (MMS), stem cells and hyperbaric oxygen: no benefit, real harms.
Find your people
- ADHD AustraliaInformation and support. Free.
- Reframing AutismAutistic-led education and community. Free resources.
- Yellow LadybugsAutistic girls, women and gender-diverse people.
- Autism Awareness AustraliaInformation for autistic people and families. Free.
Common questions
What should I do after an adult ADHD or autism diagnosis?
Give yourself time, read a few trusted sources, book a GP follow-up to plan treatment and support, and set up simple tools: one calendar, reminders, a sensory kit and protected recovery time.
What is AuDHD?
An informal term for being both autistic and ADHD. It’s common: many autistic people also meet criteria for ADHD.
Do I have to tell my employer?
No. Disclosure is your choice. If you do disclose, employers must consider reasonable adjustments under disability discrimination law.
Evidence and references
- Australian evidence-based clinical practice guideline for ADHD (AADPA 2022)
- National guideline for the assessment and diagnosis of autism in Australia (Autism CRC)
maladywise.com/late-diagnosis-adhd-autism/