Sensory Experience and Late Diagnosis
You have always known which rooms were too much.
The fluorescent lighting in certain offices that left you with a headache nobody else seemed to get. The restaurant with the open kitchen and the music slightly too loud, where you found yourself unable to follow the conversation at your own table because your brain was processing every clatter and every nearby conversation at the same volume as the person across from you. The fabric that felt fine on everyone else and intolerable on you. The specific exhaustion of a day that involved more noise, more light, more texture, more smell than your nervous system could comfortably absorb — an exhaustion that had nothing to do with how physically demanding the day actually was.
You called this being sensitive. Being fussy. Having particular preferences. Nobody, including you, called it what it more often actually was: a nervous system processing sensory information differently, working harder than a neurotypical one to filter, prioritise, and manage input that other people’s brains discard automatically.
What sensory processing differences actually involve
For many autistic and ADHD people, the nervous system does not automatically filter sensory information the way a neurotypical brain does. A neurotypical brain in a busy café filters out most of the ambient noise, he peripheral movement, most of the background conversation, and attends mainly to what’s relevant. The person across the table, or the task at hand. A neurodivergent nervous system, for many people, does not filter automatically in the same way. Everything comes in at a more similar volume. The clatter of cutlery, the conversation at the next table, the music, the person across from you. All competing for the same limited attentional resource, with much less automatic prioritisation happening underneath conscious awareness.
This is exhausting in a way that has nothing to do with willpower or attitude. It is the cognitive cost of doing manually — moment to moment, all day — what other nervous systems do automatically. By the time you notice you’re tired, you have often been filtering and managing sensory input for hours. Usually without realising that’s what the tiredness was from.
Some people experience the opposite pattern in specific senses. Under-responsiveness rather than over-responsiveness — and many people experience a mixture, over-responsive in some domains and under-responsive in others. The common thread is not a single fixed pattern. But a nervous system that processes sensory information differently from what the environments around you were built to expect.
Why it took this long to have a name
Sensory differences are easy to misread as preference. Especially in women, especially when they’re not severe enough to be visibly disabling.
- You don’t like the tag in that shirt — fussy.
- You need it quiet to concentrate — particular.
- You get overwhelmed at big events — introverted,
- or anxious,
- or just not a party person.
Each of these explanations is plausible enough on its own. So much so that nobody had reason to look past it to the underlying pattern. It’s only once you have the framework of neurodivergent sensory processing that the pattern across decades becomes visible. Not isolated preferences, but a consistent nervous system response to sensory environments that exceed what it can comfortably process.
What looked like fussiness was a nervous system accurately reporting that the environment exceeded what it could comfortably process. The report was correct. It just didn’t have the right label attached to it yet.
The mask that covers sensory struggle specifically
Sensory overwhelm gets masked the same way everything else does, and the masking here carries its own specific cost.
You learn to sit through the overwhelming meeting without visibly reacting. You learn to tolerate the too-bright office. The too-loud open-plan space, and the scratchy uniform. Because removing yourself or asking for adjustment would draw attention you’ve learned to avoid. You build an entire repertoire of small, invisible coping strategies.
Angling yourself away from a light source. Choosing a seat near the door. Keeping headphones in your bag for the moment you need them but feel too self-conscious to use them preemptively.
The cost of this masking adds to every other cost already discussed elsewhere on this site. It is one more layer of management happening underneath whatever else you’re doing, and it depletes the same finite reserve. A day that is sensorially demanding will exhaust you even if nothing else about it was difficult. Because the exhaustion has no obvious external cause, it’s easy to dismiss or fail to connect to its actual source.
What changes with the correct explanation
Understanding your sensory profile accurately — rather than experiencing it as a vague and slightly embarrassing set of preferences — changes what you can do about it.
It becomes possible to make environmental adjustments without the apology that used to accompany them. Because the need is understood rather than treated as fussiness. It becomes possible to plan your week with sensory load as a genuine factor. The way you’d plan around a physical limitation, rather than pushing through and wondering afterwards why you’re so depleted. It becomes possible to recognise, in the moment, that the irritability or shutdown you’re experiencing in a particular environment is sensory in origin rather than a character flaw. Or a sign you’re not coping with life the way you should be.
None of this requires becoming someone who can’t tolerate any sensory demand. It requires an accurate map of what your specific nervous system finds genuinely difficult. So you can make informed choices about where to spend your limited capacity for managing it.
If you’re working out what your own sensory profile actually is. And what an accurate accounting of decades of “just being sensitive” reveals once you have the right framework. This is exactly the kind of territory this practice works in. The Practice page explains how the coaching works. If you’re ready to talk, get in touch.
