Informational Posts / Mental Health / My Personal Experiences

Adrenal Fatigue or HSP?

Adrenal Fatigue or HSP?
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“Highly Sensitive Person.” 

It doesn’t mean what you initially think from the name.

A HSP isn’t just highly sensitive in terms of being overly emotional. No, high sensitivity refers to the deep sensory processing of everything

Signs of being a HSP (Highly Sensitive Person) include:

  • Feeling easily overwhelmed by loud noises, bright lights, strong smells, uncomfortable fabrics and more
  • Feeling uncomfortable by too much going on around you
  • At the end of a busy day, finding that you need to withdraw in to a darkened, calm room alone
  • Or perhaps during busy days, feeling overwhelmed and unsure of how to cope
  • Seeming less able to tolerate as much as other people
  • Feeling frazzled when you have lots to do in a short amount of time
  • Other people’s moods affecting you

What Does Being a HSP Mean?

Essentially, being a HSP means that you are more aware than others of subtleties. This is due to your brain processing information more deeply. You may also find that you have a deep connection and appreciation for the arts, music, nature, food etc. but also that you can become overwhelmed rather easily, due to your brain processing everything so much more deeply.

What is moderately stimulating to most people can quickly become overstimulating for HSP’s, which is where we can become frazzled and overwhelmed.

Being a HSP is completely normal. In fact, this personality trait makes up 15-20% of the population. However, I’ve found that in the thyroid community (that is, when speaking to thyroid patients online) that it seems even more common. Perhaps our tendency to become stressed easily contributes to the triggering of a thyroid condition?

HSP’s bring insight, passion, intuitiveness, accuracy, analytical skills and kindness to society. We reflect more on everything. HSP’s are needed and highly valued in the world, so it doesn’t mean there is anything wrong with you. Quite the opposite!

What’s The Thyroid/Adrenal Connection?

The reason I wanted to speak about it on my thyroid advocacy blog is because last year I came to the realisation that I was indeed a HSP and it changed my life.

For years, I had been chasing down a diagnosis or some kind of answer for my anxiety, tendency to become overwhelmed and stressed easily, struggles with adapting to change, social anxiety and more. I was assessed for autism: that wasn’t it. I was assessed for personality disorders: I was told it could be the answer but that I didn’t fall in to any specific one.

And then one day I googled “repetitive noises make me angry”, as I sat at work having to listen to an alarm go off every ten seconds behind me and increasingly feeling frazzled to the point that I could not concentrate at all. Everyone else was able to block it out but I couldn’t. In fact, it got me so worked up that I had to come home!

And this is a key sign of being a HSP. Most people are able to ignore or not pay attention to these kinds of noises, glaring lights, uncomfortable odours or clutter, but HSP’s are much more affected by them.

Countless times I have been lying in bed trying to sleep, when I can hear a fly buzzing around the room which is stopping me from sleeping, yet my husband can’t hear a thing.

Or I can’t concentrate on the film I’m watching because I can hear the kitchen tap dripping two rooms away, which is taking up all my energy to ignore!

The thing is, since I was also struggling with adrenal fatigue (note: it is more accurately referred to as hypothalamic-pituitary axis dysfunction), I found that a lot of the symptoms of adrenal dysfunction and being a HSP overlapped. And I wasn’t sure where one began and another ended.

Here are some examples of crossover symptoms:

How many of us think we have adrenal fatigue when we’re really HSP’s?

That’s a question I kept asking myself as I delve deeper and deeper in to research and information on having this personality trait.

We could be obsessing over fixing a physical problem when in reality, it’s not a problem at all since it is just part of our personality.

Psychotherapist Elaine N. Aron, Ph.D. talks about how child HSP’s have higher levels of cortisol, in her book. How many of us could that apply to as adults? How many of us are struggling to bring stubborn cortisol levels down in the form of adrenal fatigue, unaware that it may well just be normal for us to have higher levels, due to being a HSP?

Dr. Aron also mentions how digestive problems, muscle tension, fatigue, migraines, sleep disruptions and even weakened immune systems tend to be common in HSP’s, making us more susceptible to illness. Is it possible that being a HSP make us more susceptible to triggering our thyroid condition in the first place?

How Learning I Was a HSP Changed My Life 

Learning I was a HSP has done wonders on my mental health and wellbeing. After realising that I’m just like 15-20% of the population, and reading a lot about embracing this personality trait and how to cope with it in day to day life, has been empowering. I understand so much more about myself and instead of putting everything down to ‘adrenal fatigue’, I have actively worked to promote nourishing my HSP qualities instead.

On days when I wake up feeling low and already overwhelmed with life, I take it easy – going for a walk, putting on the music I like and avoiding the things I know over-stimulate my brain (social media, negative music, group chats, emails). I soon diffuse what would have been a meltdown in the past.

When I was putting it all down to ‘adrenal fatigue’, a physical imbalance that I was already working on fixing with my functional medicine practitioner, I was more harsh on myself and not at all accepting of these qualities. I always felt like I was ‘broken’.

And this only lead to me feeling like I was never making any progress in my mental health and wellbeing or ‘adrenal fatigue’.

By understanding how my mind works as a HSP, I am able to listen to it better and know what I need to do when I’m becoming overwhelmed and overstimulated. And as well as addressing the physical imbalances that lead to my confirmed adrenal fatigue via testing (leaky gut and oestrogen dominance), I was able to promote better mental health which helped me recover from adrenal fatigue and recognise now, which symptoms were from that and which are just part of me.

Read about how I personally fixed my adrenal issues here.

So, Do You Have Adrenal Issues or Are You a HSP?

Some of you reading this may have adrenal fatigue and not be a HSP. Some will be HSP’s and have fine adrenal function. And some may have both.

So be sure to confirm if you really do have adrenal issues via testing and remember that if you’re also a HSP, that cortisol levels a little higher than ‘normal’ may just be your norm, but as always, discuss results with your doctor.

Adrenal Testing

Order or ask for a 24-hour saliva test, testing your cortisol levels at four key points of the day, to find out if you have adrenal dysfunction. You can find testing options here and here.

Four samples taken over a 24 hour day show how your rhythm of cortisol production is working. Normal results tend to be highest in the morning, tailing off throughout the day.

Further Reading on HSP

I highly recommend Elaine N. Aron Ph.D’s book The Highly Sensitive Person for reading if you want to explore whether you’re a HSP too. It is a very interesting, insightful and compelling read which answered so many questions for me.

Let me know in the comments if you’re a HSP too!

Related post: How Thyroid Tired is Different to Normal Tired 

About Author

Rachel Hill is the highly ranked and multi-award winning thyroid patient advocate, writer, speaker and author behind The Invisible Hypothyroidism. Her thyroid advocacy work includes writing articles, authoring books, producing her Thyroid Family email newsletters and speaking on podcasts and at events about the many aspects thyroid disease affects and how to overcome these. She is well-recognised as a crucial and influential contributor to the thyroid community and has a large social media presence. Her bestselling books include "Be Your Own Thyroid Advocate" and "You, Me and Hypothyroidism".


  • Fabienne
    October 20, 2022 at 7:23 pm

    I can definitely relate to the “symptoms” of HSP.
    I just had an adrenal gland test done (ACTH) as in previous test it showed I was a little outside the “normal range”. But today I had telephone call with Endo (waste of time), and he said my adrenal glands are ok. I will definitely take a saliva test even though endo said these tests aren’t reliable!!??!!
    But yes I definitely consider myself to be HSP. I had all the symptoms as far as I can remember. I always wondered why I was so susceptible to so many things from an early age. I care too much, I worry too much, I feel too much, I overreact so often instead of reacting, I truly feel people emotions & feelings…., and so on.
    I heard/read before about HSP but I will look more into it.

  • Ginny
    October 20, 2022 at 6:59 pm

    An interesting read that I can very much relate to. I think it is important to note that autism presents very similarly to HSP but the female presentation of autism (especially in the absence of learning difficulties) is less well understood and hence often missed. Also autism and hypothyroidism seem to be linked – there is a higher incidence in the autistic population. The same goes for adrenal fatigue due to having an overactive HPA axis. I thought I was definitely an HSP until my 2 children were diagnosed with autism…and suddenly everything made sense.

  • Sharon
    November 11, 2021 at 6:33 pm

    I haven’t had a cell phone in more than a decade because when it rang, I’d let out a scream! Had always been easily startled, a fact that amused the ex to the degree that he’d prepare scare tactics when he heard me coming….you know, just for the fun of it! Twenty years of it left me with PTSD so dark rooms and candles are my bff’s at 77 years of age.

  • Kyle
    August 15, 2020 at 7:45 pm

    Very interesting blog post. Gives me a lot to think about.
    Throughout my childhood I was particularly sensitive compared to most other kids. It wouldn’t take much for me to become overwhelmed and cry. I wonder if this sensitivity to stressful situations exacerbated my adrenals to a higher degree than most. In other words, I wonder how many of us are both adrenally fatigued and HSPs.

  • Tamara Smith
    June 18, 2020 at 4:37 am

    I’m an HSP as well! I’m still in the process of reading the books. I’m starting with the relationship book. The thought came to my mind, what if what she sees as HSP is actually purely adrenal fatigue? What if I become “well” once I get rid of my adrenal fatigue? It’s so confusing because it overlaps so much! I’ve definitely been an HSP since I was a small child, but I also had gut dysbiosis probably all my life from an antibiotic I took when I was a toddler. So who knows. I want to do more research though, this is fascinating and I’m having many ah ha moments in this book! It makes so much more sense and I feel so much less alone!

  • Mary
    June 21, 2019 at 4:50 am

    Thank you for bringing up the issue of ‘highly sensitive people’. I have been one for 64 years, long before I had thyroid issues in my 40s. Along with social anxiety all my life.
    I will say, I have learned over the years, never to mention either condition to my PCP. If I do, they assume I need my thyroid dose lowered…


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