Why Do I Overthink Everything in Relationships? ADHD, Anxiety and Rejection Sensitivity
The Hidden Link Between ADHD, Rejection Sensitivity, and Relationship Anxiety
This blog explores how ADHD can show up in relationships, making them feel intense, confusing, and mentally exhausting, even when you care deeply. It looks at overthinking, self-doubt, and emotional reactions, and how counselling can help you understand yourself and your relationships in a different way.
Why do I overthink everything in relationships?
Overthinking in relationships is often linked to ADHD, anxiety, and rejection sensitivity. It can involve replaying conversations, analysing messages, and worrying about how you are perceived. These patterns develop as ways of coping and can be understood and reduced through counselling and self-awareness.
If my childhood felt confusing, my early adult relationships felt… intense.
I cared deeply, probably more deeply than I could fully make sense of at the time, and yet for something I wanted so much, relationships often felt unexpectedly hard. Not in a dramatic or obvious way, but in a quieter, more constant way that seemed to sit just beneath everything, shaping how I thought, how I felt, and how I showed up.
At the time, I had no idea that ADHD was part of this.
I simply thought I was anxious.
If you haven’t already, you can read more about how this often begins in childhood here.
Why Do I Overthink Everything in Relationships?
From the outside, nothing looked particularly unusual. I was thoughtful, attentive, and invested in the people I cared about, and there was nothing obvious that would suggest how much was going on internally.
But inside, my mind rarely rested.
After conversations, I would find myself replaying them over and over, not casually, but with a level of focus that felt almost impossible to switch off. I would go back over what I had said, how I had said it, and what I should have said instead, as though there was a “right” version I had somehow missed.
Messages felt even harder. I could spend far longer than I would ever admit rereading a text before sending it, adjusting words, tone, even punctuation, trying to make sure it couldn’t be misunderstood. And once it was sent, the waiting would begin.
I would check my phone more than I wanted to, telling myself to leave it, to focus on something else, but never quite managing it. If a reply didn’t come quickly, my mind would start to fill in the gaps, not slowly or gently, but quickly and convincingly.
I would wonder if I had said too much, or not enough, if I had annoyed them, or if something had shifted without me realising. And even when nothing had actually happened, it felt real enough to sit heavily in my chest.
Why Do I Feel So Anxious Waiting for a Reply?
There was a particular kind of anxiety in waiting that felt difficult to explain at the time. It wasn’t just impatience, but more a sense that something important was hanging in the balance, as though the direction of the relationship itself could shift depending on what came next.
I would try to distract myself, but my attention would keep pulling back. My thoughts would continue working in the background, trying to make sense of something that hadn’t even happened yet, filling in gaps and creating meaning where there was none.
At the time, I understood this simply as anxiety.
Looking back now, I can see there was more to it than that.
What Is Rejection Sensitivity and How Does It Link to ADHD?
What I didn’t know then is that many people with ADHD experience something called rejection sensitivity, which is not always obvious from the outside, but can feel incredibly strong internally.
It shows up as a heightened emotional response to perceived rejection, criticism, or disconnection, and that word perceived is important, because it is not always about what has actually happened, but about what your mind interprets from what has happened.
A delayed reply can feel like distance, a slight shift in tone can feel like something is wrong, and a moment of uncertainty can quickly feel as though everything is at risk.
When your mind is already fast, already processing constantly, those interpretations can build quickly, and the emotional response can follow just as fast.
So without realising it, I adapted.
Why Do I Change Who I Am in Relationships?
This wasn’t something that started in adulthood. It was something I had learned much earlier, that subtle and often unconscious process of working out who I needed to be in order to keep things steady.
What would keep someone close.
What would make things feel okay.
What would prevent something from going wrong.
In relationships, this became more pronounced. I would find myself adjusting how I spoke, what I shared, and how much of myself I showed, not in a calculated way, but automatically, almost without noticing.
It was all part of trying to get it right, trying not to be too much, and trying, often quite quietly, not to lose the connection.
Why Do My Relationships Feel So Intense and Unstable?
Because of all of this, relationships could feel both deeply important and quietly fragile at the same time.
I cared, and I cared a lot, but alongside that care was a constant sense of uncertainty. I often felt unsure where I stood, unsure how I was coming across, and unsure whether things were actually okay, even when there was no clear reason to think they weren’t.
There were relationships that didn’t last, not always because something obvious had gone wrong, but because the internal experience of being in them felt so difficult to hold.
There was too much thinking, too much pressure, and too much self-doubt.
And underneath all of that, there was often a quiet belief that maybe I was the problem.
I Thought It Was Just Anxiety
For a long time, anxiety felt like the only explanation that made sense.
And in some ways, it did explain parts of it.
But it never quite explained everything.
It didn’t explain the speed of my thoughts, the intensity of my emotional reactions, or the constant effort it took to adjust, manage, and keep things feeling steady. It felt as though I was managing something without ever fully understanding what it was.
When I Began to Understand It Differently
It wasn’t until later, through counselling, that things began to shift, not because I was told what was wrong with me, but because I began to understand what was happening underneath it all.
And eventually, I began to see this through an ADHD lens.
That understanding changed things.
Because suddenly, it wasn’t just anxiety. It was a mind that processed quickly, a nervous system that responded strongly, and patterns that had developed over time to try to maintain connection and reduce the risk of losing it.
Once I could see that, I could begin to relate to myself differently.
How Counselling Helped Me Understand My Relationships
Counselling didn’t remove my thoughts or make everything suddenly feel easy, but it did help me understand why those patterns were there in the first place.
I began to see why I overthought, why I reacted quickly to certain situations, and why relationships had felt so intense for so long.
And from that understanding, something began to shift.
I was no longer as caught in the loops of my own thinking, not because they disappeared, but because they didn’t pull me in with the same force. There was more space, more awareness, and more choice in how I responded.
How I Work Now: ADHD and Attachment
This is now the work I do with the people I support.
Because this is not just about ADHD, and it is not just about relationships, but about the way the two interact.
In my work, I support clients through both an ADHD and attachment lens, because without understanding ADHD, it is easy to assume you are simply too anxious or too sensitive, and without understanding attachment, it is easy to miss the relational patterns that continue to repeat.
When both are understood together, the whole picture begins to make sense in a way that feels meaningful and grounding.
What Actually Changes in Relationships
When this work begins to land, the changes are often subtle from the outside, but significant on the inside.
You are no longer replaying conversations for hours afterwards or questioning everything you said. You are not checking your phone constantly or waiting for reassurance in the same way.
You can send a message and leave it. You can notice a feeling without immediately reacting to it, and you can sit with a degree of uncertainty without it taking over completely.
There is a growing sense of steadiness, not because everything is perfect, but because you are no longer constantly trying to get everything right.
And relationships begin to feel less like something you have to manage, and more like something you can simply be in.
Final Thoughts
For a long time, I believed relationships felt hard because I was doing something wrong.
Now I understand that I was navigating them with patterns that made sense at the time, but no longer needed to lead the way.
Ready to Understand Yourself in a Different Way?
If you recognise yourself in this, counselling can help you begin to understand what is happening underneath your thoughts, your reactions, and your relationships.
As a counsellor in Thurrock, and working online across the UK, I support women who feel capable on the outside but find relationships mentally and emotionally exhausting.
You don’t have to keep figuring this out on your own.
Find out more on my homepage
You were never too much.
You just learned to carry a lot… especially in your relationships.
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