Am I Autistic, ADHD, Highly Sensitive, or Gifted? Why It's So Hard to Tell
Maybe you've spent hours down an internet rabbit hole, moving from one quiz to the next, trying to find the words that finally explain why you experience the world the way you do. You read a list of ADHD traits and think, yes, that's me. Then an hour later you read a list of autistic traits and think exactly the same thing. Somebody mentions being a highly sensitive person and something about that resonates too.
And somewhere in the mix there's a nagging thought that maybe this is just what being gifted feels like, or maybe you're just anxious, or maybe you're overthinking all of it, which would be a very on-brand thing to worry about.
If this sounds familiar, you're not doing anything wrong, and you're certainly not alone in it. This is one of the most common experiences I hear from people before they ever reach out to a therapist: years spent trying on different explanations, none of which quite fit on their own, and a growing frustration that everyone else seems to have a clear, tidy label while you’re still trying to figure yourself out.
There's a good reason for that. Autism, ADHD, giftedness, high sensitivity, and anxiety genuinely overlap in how they show up day to day, and untangling them from the outside, without support, is properly difficult.
In this post I want to walk through why that overlap exists, and share two diagrams I come back to again and again with clients, because they map this confusion out more clearly than almost anything else I've found.
Why These Traits Are So Easy to Mix Up
Autism, ADHD, and giftedness are each defined by a specific set of core features, but a lot of what people notice about themselves day to day isn't the core feature. It's the downstream experience of living with that wiring: feeling everything intensely, needing more recovery time than other people seem to, struggling to switch off a busy mind and finding certain environments unbearable.
Those downstream experiences can look remarkably similar across ADHD, autism, giftedness, and high sensitivity, even though what's driving them underneath can be quite different. Emotional intensity, sensory sensitivity, a tendency to overthink, difficulty with transitions, a deep need for meaning and connection: all of these can be present in an autistic person, an ADHDer, a highly sensitive person, a gifted adult, or someone who is several of these at once.
None of these traits belong exclusively to one neurotype, which is exactly why self-identification from a checklist so often leaves people more confused rather than less.
There's also the added complication that these traits can coexist. Someone can be autistic and ADHD (AuDHD), autistic and gifted, highly sensitive and ADHD, or some combination of several of these at once. The traits don't compete for space. They layer on top of each other, which is part of why so many people describe feeling like they don't fit neatly into any single description they've come across.
A Map of the Overlap: The Autism, ADHD, and Giftedness Venn Diagram
One resource I share with clients regularly is a Venn diagram created by Katy Higgins Lee, a therapist who specialises in working with gifted and twice-exceptional adults. Her diagram lays out three overlapping circles, one each for autism, ADHD, and giftedness, and it's genuinely one of the clearest visual explanations of this overlap that I've come across.
What I find most useful about it is that it doesn't just list traits under each label. It shows which traits tend to be shared between two neurotypes, and which ones show up across all three. Things like emotional sensitivity, sensory differences, being interest driven, uneven or asynchronous development, unusual ways of learning, intense curiosity, difficulty with executive functioning, and divergent or creative thinking all sit in the middle where autism, ADHD, and giftedness overlap. Other traits sit more specifically between two of the three, and some are more distinct to just one.
It's worth being clear about what this diagram is and isn't. As Katy Higgins Lee notes, these are common traits rather than diagnostic checklists, and most people who identify with one or more of these neurotypes won't experience every trait listed under it. This chart is also not meant for diagnosis.
What it's genuinely good for is helping people see that the confusion they've been feeling isn't a personal failure to understand themselves. The overlap is real, and it's been mapped out by people who've spent a long time studying exactly this territory.
Where Does High Sensitivity Fit In?
The second piece I want to bring in comes from Dr Megan Anna Neff of Neurodivergent Insights, an AuDHD clinical psychologist whose work on the overlap between high sensitivity and neurodivergence is some of the most thoughtful I've read on the subject.
High sensitivity, or what's sometimes called sensory processing sensitivity, is a genuine and researched personality trait, even though it isn't a formal diagnosis. It describes a nervous system that responds more intensely to sensory input, emotional atmosphere, and subtle cues than most people's do.
Where things get complicated is that this same heightened responsiveness overlaps substantially with autistic traits, with ADHD, with giftedness, and with anxiety, which means a highly sensitive person can very easily be mistaken for autistic, or vice versa, or find that both descriptions apply at once.
Dr Neff's comparison of high sensitivity and autism is a good example of how nuanced this gets. Both groups tend to have heightened sensory awareness, strong emotional reactivity, and difficulty with new or unpredictable situations. But autism also involves things that aren't necessarily part of the highly sensitive experience on their own: a particular way of processing information from the ground up rather than the top down, intense and often narrow interests, a strong preference for routine and repetition, and social communication that tends to be more direct and literal.
Similarly, ADHD and high sensitivity share a tendency towards becoming easily overwhelmed and a strong emotional response to perceived rejection, but ADHD brings its own distinct pattern of difficulties with attention regulation, impulse control, and hyperactivity that sensitivity alone doesn't explain.
None of this is about drawing a hard line between categories. It's more that understanding where these traits genuinely overlap, and where they diverge, gives people a much more accurate picture of themselves than any single label attempted in isolation.
Why the Label Matters, and Why Getting One Isn't Always Simple
There is a lot of debate right now about the validity of different neurodivergent labels and diagnoses and who should get them.
For many neurodivergent people, having a word that finally explains your experience can be enormously validating. It can mean the difference between spending your whole life thinking you're simply not trying hard enough and understanding that your brain works differently, and that the struggle was never a personal failing. It can bring you into contact with other people who understand you without lengthy explanations, and it can help you finally make sense of years, sometimes decades, of feeling out of step with everyone around you. That matters to me too, both personally and in how I work with clients.
However, the process of getting a diagnosis isn't always straightforward, and that this has very little to do with whether your experience is real or valid. Depending on where you live, you might be facing an assessment waiting list that stretches on for years. In some countries, formal diagnosis, particularly for autism and ADHD in adults, is reserved almost entirely for people who are visibly struggling, such as being completely unable to work and to maintain relationships.
If you've become very good at holding things together on the surface with a job, a relationship and a social life that looks functional from the outside, you may be told there's “nothing wrong with you”, even if you meet the assessment criteria. I’ve personally worked with several clients who have been told by healthcare professionals that they won’t get a diagnosis because they have friends, or because they’re able to make money.
In other countries, private assessment is the only realistic route, and it comes with a price tag that puts it out of reach for a lot of people. And in some parts of the world, adult diagnosis for these neurotypes simply isn't common practice yet, regardless of cost or waiting times.
That combination can leave people in a particularly lonely position. You know something in you works differently. You've done the reading, recognised yourself again and again in other people's descriptions of their own experience, and yet you're left without the confirmation you were hoping for, sometimes explicitly told that you're fine because you're coping. And coping, especially for autistic, ADHD, highly sensitive, or gifted adults, often means years of quiet effort that nobody around you can see.
What This Means for Therapy
So what do you do if you're waiting for an assessment, if getting one isn't realistic for you right now, or if you were assessed once and told there was nothing to find, even though that didn't feel true to your own experience?
This is where I think therapy, and IFS specifically, can genuinely help, independent of whether or not you have a formal diagnosis. If you're autistic, ADHD, highly sensitive, gifted, or several of these together, whether or not that's ever been officially confirmed, you almost certainly grew up in a world that wasn't built with your wiring in mind. And parts of you adapted to that.
Some parts learned to mask, to perform a version of yourself that seemed to fit better. Some parts became hyper-vigilant to criticism or rejection. Some parts got very good at achieving, at analysing, at holding everything together, because that felt safer than being seen as different. And underneath those protective parts, there is often younger, more vulnerable parts carrying the pain of not fitting, of being told you were too much or not enough, that got locked away and kept out of sight because it was too painful to sit with.
Internal Family Systems doesn't require a diagnosis to be useful, because it isn't in the business of sorting you into the correct box. It's interested in getting to know the parts of you that formed in response to your particular experience of being different, understanding what they were trying to protect you from, and helping the more vulnerable feelings they've been guarding finally get some air.
Whether that experience has a formal name yet or not, the parts are real, and so is the relief that can come from finally being understood by someone who isn't waiting for a piece of paper before they take you seriously.
This is very much the territory I work in, and you can read more about how I approach therapy for people who are neurodivergent if you'd like a fuller picture of what that support can look like.
You Don't Need a Diagnosis to Start
If you've spent years cycling through labels, waiting for an assessment, or sitting with a diagnosis (or lack of one) that never quite felt like it told the whole story, this doesn't mean something is wrong with you or that you're overanalysing a non-issue. It means you're a person whose traits don't sort neatly into the categories we've built to describe them, and that you may also be dealing with systems that were never designed to recognise people like you easily.
You don't need a confirmed diagnosis or a settled identity before starting therapy. What you need is a therapist who takes your experience seriously, who understands the overlap between these different ways of being wired, and who can help you get curious about the parts of you that developed to cope with feeling different, rather than treating those parts as something to fix.
If you've spent a long time trying to work out whether you're autistic, ADHD, highly sensitive, gifted, or some combination that doesn't have a tidy name yet, I'd be happy to help you explore that.
I offer online IFS therapy from a neurodivergent-affirming lens for adults in Sweden, Europe, and Asia. You're welcome to book a free 15-minute consultation to get a sense of what it would be like to work together.
