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How To Process A Late ADHD Diagnosis

Kat Brown is the author of 'It's Not A Bloody Trend: Understanding Life as an ADHD Adult'. Based on Kat's personal experience and extensive interviews with ADHDers and world-leading clinical experts, It's Not A Bloody Trend is for anyone wondering if what's always been 'wrong' with them might just be undiagnosed ADHD. Chapters: 00:31 Early memories of feeling different 04:34 Kat’s masking journey 06:32 Rejection Sensitive Dysphoria 18:45 Kat’s ADHD mission 23:42 ADHD diagnosis realisations 31:43 Tiimo advert 35:21 ADHD masking 45:09 Why women have been let down 49:22 Consequence of life without identity 51:34 Our eternal pursuit of love 53:45 What would you say to the bullies 56:09 Kat’s ADHD item 58:51 Audience questions (washing machine of woes) 01:03:58 A letter to my younger self Visit Kat on Instagram 👉 https://www.instagram.com/katbrownwrites/?hl=en-gb It's Not A Bloody Trend: Understanding Life as an ADHD Adult 👉 https://www.amazon.co.uk/Its-Not-Bloody-Trend-Understanding/dp/1472148703 No One Talks About This Stuff: Twenty-Two Stories of Almost Parenthood 👉 https://www.amazon.co.uk/One-Talks-About-This-Stuff/dp/1800182872 Get 30% off an annual Tiimo subscription 👉 https://www.tiimoapp.com/offers/adhdchatter Buy Alex's book entitled 'Now It All Makes Sense' 👉 https://www.amazon.co.uk/Now-All-Makes-Sense-Diagnosis/dp/1399817817 Pre-order Alex’s latest book about Rejection Sensitive Dysphoria 👉 https://linktr.ee/adhdchatter?utm_source=linktree_profile_share&ltsid=9ffd8709-06df-444c-9936-c136fbd14d6e Producer: Timon Woodward  Recorded by: Hamlin Studios DISCLAIMER: The content in the podcast and on this webpage is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your doctor or qualified healthcare provider. Never disregard professional medical advice or delay in seeking it because of something you have heard on the podcast or on my website.

Alex PartridgehostKat Brownguest
Dec 8, 20251h 5mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Late ADHD diagnosis: masking, identity, grief, and self-acceptance journey

  1. Kat describes realizing “difference” mainly through other people’s reactions—bullying, micro-corrections, and social mismatch—rather than an innate sense that something was wrong.
  2. They unpack rejection sensitive dysphoria (RSD) and emotional dysregulation as disproportionate, visceral responses often intensified by accumulated stressors (“trigger stacking”).
  3. A late diagnosis can bring relief and clarity, but also requires a deliberate period of mourning for what might have been, followed by therapeutic work toward radical acceptance.
  4. The conversation highlights how masking and people-pleasing shape careers, relationships, and self-worth, and why women have been systematically missed due to research gaps and misdiagnosis.
  5. They share practical scaffolding and resources—sleep, routines, medication support, HALT checks, and hormone/ADHD education—plus reflections on love, identity, and belonging.

IDEAS WORTH REMEMBERING

5 ideas

Feeling “different” often becomes real through others’ feedback, not self-perception.

Kat notes she was initially fine being herself until repeated comments, teacher perceptions, and bullying reframed her as “weird,” creating a long-term identity disconnect.

Masking can be less about fitting in perfectly and more about constant anticipation.

Kat describes trying to predict needs, rules, and social expectations—an exhausting mental puzzle that can leave you depleted and needing recovery time after work.

RSD is intensified by stakes and stress, and it’s often misattributed as “overreacting.”

Examples like screaming after an interview mistake or panicking over paint stripper in hair show how the body can interpret errors/criticism as catastrophic threats.

The “last straw” is rarely the real cause—track cumulative overload instead.

Using “trigger stacking” and checks like HALT (hungry, angry, lonely, tired) helps identify the build-up that pushed you over threshold and choose lower-demand plans.

A late diagnosis brings both relief and grief; both are normal and necessary.

Kat describes the post-assessment “rosy glow” plus Professor Susan Young’s point that adults need time to acknowledge and mourn the alternate life that support might’ve enabled.

WORDS WORTH SAVING

5 quotes

There's this really odd thing about difference or feeling different, is that in my experience, you may not necessarily feel different, but it becomes evident that other people think that you are.

Kat Brown

Spoiler alert, the biggest discovery that I have made through my life so far in all my 43 years, um, is nobody gives a crap what you're doing unless you are inconveniencing them in some way.

Kat Brown

You've been operating on hard mode.

Kat Brown

I spent a horrifying amount of time just thinking I was defective, um, that I was an alien in a meat suit, if you like.

Kat Brown

It's so difficult to try and be a person in the world when you don't understand what game you're playing, if you like.

Kat Brown

Early experiences of difference and bullyingMasking, people-pleasing, and identity fragmentationRejection Sensitive Dysphoria and emotional dysregulationTrigger stacking, sleep, routines, and coping scaffoldsPost-diagnosis relief, grief, and radical acceptanceWhy women were missed in ADHD research and clinical pathwaysHormones: PMDD, perimenopause, and medication effectiveness

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