Diagnosed with autism (already had ADHD)… because one neurodivergence just wasn’t enough.

I was diagnosed with ADHD a few years ago — when my GP first suggested it, I thought, “Nonsense.” I didn’t actually know what ADHD was, other than assuming it meant other people’s hyperactive kids. But after Googling “adult ADHD”, it didn’t take long before I was wondering how this could be a thing that described my entire life… and yet nobody had bothered to tell me.

I went back to my GP and said I thought he was onto something. He called me in for a long chat. Good news: there’s a pill that works really well. Bad news: to get it, you need a formal diagnosis — and the NHS waiting list is about three years long. “I don’t suppose you can afford to go private?”

As it happened, unknown to him, the Right to Choose scheme was in its early days, and I ended up being seen in a matter of weeks — paid for by the NHS, and without having to remortgage my house.

The ADHD diagnosis made a huge difference. The medication (Concerta) worked well,until it became unobtanium, and I was switched to Elvanse. It was during a routine medication review with a psychiatrist at PUK (who was overseeing the switch) that autism was first suggested. She picked up on some signs, and wrote to my GP recommending an assessment. I went through Right to Choose again.

That assessment was last week — and I now have a formal diagnosis of autism. So I'm running both ADHD and autism, or AuDHD, which isn’t an official term, but widely used these days to describe having both.

It wasn’t obvious I had autism. I never really considered it before the PUK psychiatrist brought it up — she seemed slightly surprised when I said I’d only ever been diagnosed with ADHD. She told me they often coexist, and recommended getting properly assessed. Again, I didn’t think it was likely, but once I read more about AuDHD, it became clear she was probably right.

The ADHD masked a lot of the autistic traits, and I’d developed enough coping mechanisms over the years to pass for functional. I also had that outdated idea that autistic people were all ultra-organised and rigid, which didn’t sound like me… until I realised that, in some ways, it kind of did.

Having both, and not knowing, is like running two operating systems that keep launching conflicting updates; it’s certainly not ideal. One wants to do everything at once, the other refuses to start the other refuses to start unless it’s on the to-do list, mentally rehearsed forty-two times, and prepared with military precision.

It’s a constant tug of war, but I can see if you are aware you have both conditions, it’s not so bad. My initial “Oh no, not another one” reaction has mellowed. I’m can see how the autism can rein in some of the more chaotic ADHD tendencies, and how the ADHD keeps some of the autistic rigidity from taking over.

It’s all very new to me, and I’m curious to hear from others with either diagnosis or both. I’m pretty confident that, finally, we are getting to the bottom of things, and there should be no new surprises. I will be able to harness the creativity and out-of-the-box thinking that comes with these conditions, while better navigating some of the chaos.

  • Yep. The assessor I had originally was brilliant with autism, especially autism in women. Couldn't fault him on that. But his knowledge of ADHD just wasn't up to scratch.

  • I was diagnosed with ADHD 2 years ago, and Autism last year, so both were pretty close together. Like yourself, I has suspected the ADHD for a while but the Autism one was a shock, despite the fact that my son has had an ASD diagnosis for 16 years (he's 21). I totally believe that there is a constant battle between them in my head, and often the mix up of the traits can have me thinking that the diagnosis must be wrong, because I don't fit the mould! It's definitely a tug of war, and I mask so highly that then struggle is covered up. It's exhausting!

  • Got my ADHD diagnosis a while back, and only recently explored autism too—it’s wild how the two mix. Some days feel like your “two operating systems” analogy, with focus and chaos battling it out. Found that little breaks and planning in chunks actually help me cope. If anyone’s curious, a clinic in Liverpool has solid resources and more info here that really helped me figure out strategies that work without overthinking.

  • Sometimes an autistic intrests can make it so we hyper focus but sometimes a hyper fixation of adhd makes us spend a whole day learning about the lochness monster only to hate that subject the next day 

  • I was diagnosed autism then ADHD. I was originally told I didn't have ADHD because I can hyper focus but I later learnt this wasn't true and was referred by right to choose and got the official diagnosis. You are so right with the tug of war. It can be exhausting at times having 2 parts of the brain wanting such different things.

  • I’m in my 60s and I’m another AuDHDer. I got my autism diagnosis last December and I’m on a 4+ year long waiting list for an ADHD assessment. 

    I experience the pull between perfectionist ideals and a messy reality—it causes me distress. Intense periods of focus on my treasured interests, yet needing the novelty of new things, some of which are quickly discarded. Sometimes adventurous, yet most of the time needing quiet, routine and single focus.

  • Hi 

    I've got both. It wasn't until things got pretty desperate that I started to see a psychotherapist, who suggested I might have ADHD. I now have a formal diagnosis for both.

    I totally get the tug of war thing.

    Part of me really wants to socialise and have friends but part of me can't stand the idea of even being visible to others. It's weird.

    I find myself getting into awkward situations. I started a college course (ADHD) and then when I actually got to college, I thought, what the heck am I doing here (Autism ) I'm terrified. Grimacing 

    Hope things become easier for you.Slight smile

  • I’ve got both too, and it really helped once I noticed how they affect each other—some days the ADHD masks the autism, other days it’s the opposite. It’s a weird balance.

  • I didn't know much about neurodiversity before I was diagnosed with ADHD a few years ago; I'd never even heard the term before.

    The ADHD diagnosis explained many things, but I still had many of the same issues, even though I was taking the stimulant medication. Pretty much all of them can be explained by the undiagnosed autism; I only just found out, so I'm reading up on the condition (I really don't like the term disorder). Looking back, I can see the pieces were always there, but I never knew what picture I was trying to complete. Turns out it wasn’t a picture — it was one of those 3D Magic Eye things and I was holding it upside down, in the dark. Apparently it's a dolphin, but I don't see it. 

  • I remember life pre diagnosis, and a confusing place it was too, missing bits of my puzzle were filled in too. FOr me a diagnosis gave some power with autism, you can't have power with that which you can't name.

  • I'm the other way around, I was assessed for autism and my report states that I should also be tested for ADHD. I just now waiting for that assessment under the right to choose, I've done all the preliminary stuff so it's just the assessment itself to go.

    My concern is that if I'm medicated for ADHD how will it effect my autism if at all.

    Does one cancel out or dampen the appearance of the other?

  • I concur—it's like a living contradiction that makes life an oxymoron.

    The two conditions interact, that have the potential to create a tangled and exhausting kind of executive dysfunction that’s harder to deal with than either condition on its own. They often create a state of intense internal conflict and paralysis. I hope now I know that autism is at play too, I can harness some of the rigidity of autism to put a leash on some of the ADHD chaos and impulsivity.

  • It’s interesting how ADHD can hide some autistic traits, and how having both can feel like two systems constantly clashing. I get what you mean about one part wanting to rush into everything and the other needing all the details lined up perfectly.

  • Thanks — my remarks were partly tongue-in-cheek. I like to think I’m a cup’s-half-full sort of person.

    What I was really trying to say is that not knowing can be the worst part. When you’re undiagnosed and don’t even know you have it, there’s no obvious reason for the anxiety, and the conflicting traits are unwittingly playing havoc with somatic health. In my case, I also have a vestibular-related condition that causes dizziness triggered by anxiety, so I’ve basically been getting false positives from a system I didn’t realise was being overloaded.

    But now that I know, I can take proactive measures and seek help to stop this. Although I'm under no illusion it will be a magic wand, I feel the diagnosis has filled in the last bits of the puzzle, and hopefully, there are no missing bits under the table.

  • AuDHDer here! I have had ADHD diagnosed since I was a kid (back then it was ADD), but about four years ago got diagnosed with ASD as well.

    I’m can see how the autism can rein in some of the more chaotic ADHD tendencies, and how the ADHD keeps some of the autistic rigidity from taking over.

    That is such an interesting way to put it! I find in my case having both has resulted in a very extreme hyperfocus. When I get focused on something, I can’t stop doing it or thinking about it until it gets old or hurts me in some way. This has been a huge benefit to me with my hobbies of writing music and stories, but obviously can have some downfalls as well.

    I’m glad to hear that you are finding positives with this dual diagnosis! 

  • I'm so glad I don't have both, being autistic is enough for me to cope with, but I hope you gain some new insights and ways of living comfortably with yourself.