"It's probably just stress."
If you have a body and you've ever sat in a consulting room describing symptoms that don't quite add up, there's a good chance you've heard some version of that sentence. Your bloods came back normal. Your scans were clear. And yet you're exhausted, or foggy, or wired at night and flattened by mid-afternoon, and someone has gently suggested that the problem is your life, not your physiology.
Sometimes that's genuinely true, and I'll come back to it, because stress deserves more respect than the phrase gives it. But "just stress" is often something else in disguise. It's what we reach for when standard testing hasn't found an answer, and that is not the same thing as there being nothing to find.
Here is how I think about it.
"Just stress" usually means "nothing showed up on the usual tests"
Standard pathology is designed to catch disease, and it's very good at that. What it's less good at is catching the in-between: the early, the subclinical, the patterns that sit just inside the reference range but a long way from how you actually feel.
A result labelled "normal" means it fell within the range expected for the general population. It doesn't mean it's optimal for you. It doesn't account for the fact that reference ranges are wide, that most testing is a single snapshot in time, or that plenty of things that make people feel unwell aren't measured on a routine panel at all.
So when the tests come back clear and the symptoms don't, "just stress" can become a placeholder. It closes the conversation. My job is usually to reopen it.
Stress is real, and it is physiological
Let me be fair to stress, because dismissing it is its own mistake.
Stress isn't a character flaw or a failure of willpower. It's a physiological state. When your nervous system reads a situation as demanding, whether that's a deadline, a hard year, or a body that doesn't feel safe, it mounts a real, measurable response: shifts in cortisol, changes in heart rate and blood pressure, altered digestion, disrupted sleep. Sustained long enough, that response has genuine downstream effects on energy, mood, hormones, and immunity.
So the problem is rarely that stress "isn't real." The problem is that "it's just stress" gets used as an endpoint, when it's really a starting point. If stress is driving your symptoms, that's a physiological process we can understand and support properly. And if something else is driving them, we don't want to miss it because we stopped looking.
The gap between "your results are normal" and "you are well"
This is the gap I spend most of my time in.
You can have unremarkable bloods and still be running low on the reserves that keep you feeling like yourself. You can sit inside every reference range and still have a pattern, a direction of travel, worth paying attention to before it hardens into a diagnosis. Feeling unwell is information. It isn't proof of a specific cause, but it is a real signal that something in the system is under strain, and it deserves to be taken seriously rather than explained away.
What often sits underneath
When someone comes to me having been told it's "just stress," these are some of the areas I actually want to look at. Not because any one of them is always the answer, but because they're commonly overlooked, and they overlap with the exact symptoms that tend to get dismissed. This isn't a checklist to diagnose yourself from. It's a sense of the terrain.
- Thyroid function, looked at properly. A single in-range TSH doesn't always tell the whole story, and thyroid patterns can quietly produce fatigue, low mood, cold intolerance, and brain fog.
- Iron and ferritin. You can have "normal" haemoglobin and still have depleted iron stores. Low ferritin sits behind a great deal of unexplained tiredness, particularly in menstruating women, and it often isn't tested at all.
- Blood sugar regulation. The energy crashes, the mid-afternoon wall, the wired-then-flat pattern: how your body handles blood sugar across a day can drive a lot of what feels like stress.
- Nutrient status. Things like B12 and vitamin D can be low enough to affect energy, mood, and cognition well before anything dramatic appears.
- Sleep, beyond the hours. Not just how long you sleep, but how well. Poor sleep quality mimics, and worsens, almost everything else on this list.
- Hormonal transitions. Perimenopause in particular can begin years earlier than people expect, producing a scattered, multi-system picture that is very easy to label as stress.
- The gut. Digestive function influences mood, energy, and inflammation in ways we're still mapping, and gut symptoms are frequently sitting right alongside the "stress" ones.
- What came before. A viral illness, a hard season, a course of medication: sometimes the current picture makes far more sense once we account for what preceded it.
None of these are things to panic over, or to start self-treating. They're things worth examining, methodically, one at a time, with someone who can interpret them in context.
Why the overlapping picture gets missed
Here is the structural problem. Most healthcare is organised by system. One clinician looks at your hormones, another at your gut, another at your mood. Each examines their piece, finds nothing alarming in it, and reasonably concludes their part is fine.
But complex, multi-system symptoms don't respect those boundaries. Fatigue, poor stress tolerance, sleep disruption, brain fog, and low mood tend to travel together, and they tend to share underlying drivers. When you only ever look at one system at a time, the connective thread, the thing tying the whole picture together, is exactly what falls through the gaps. "Just stress" is often what's left when every individual piece looked acceptable but nobody stood back to see the whole.
What a proper look actually involves
For me, it starts with time. A thorough history and the full timeline, not just the current symptom list. When did this begin? What else was happening then? What's the pattern across a day, a week, a cycle, a year? Symptoms that seem random in isolation often turn out to be quietly rhythmic once you map them.
From there, testing is used deliberately, to answer specific questions rather than to cast a wide net and hope. Sometimes the useful next step is a test that hasn't been run yet. Sometimes it's re-reading results you already have with fresh eyes and a fuller context. And sometimes the most honest thing I can say is that the picture points clearly toward stress and nervous-system load, in which case that becomes something we work with directly and respectfully, not something we wave away.
Where to start while you're still figuring it out
None of what follows replaces a proper assessment, but these are the foundations that rarely do harm and that give both you and any practitioner far better information to work with.
Eat with some regularity, and include protein through the day, so your blood sugar has fewer reasons to swing. Protect your sleep as if it were treatment, because in many ways it is. Move in a way that leaves you steadier rather than more depleted. And keep a simple record of your patterns: energy, sleep, mood, symptoms, and what surrounds them. A few weeks of honest notes will tell a practitioner more than almost any single test.
If this sounds like you
If you've been told it's "just stress" and it has never quite sat right, trust that instinct enough to keep asking. It might turn out that stress really is at the centre of it, and that is entirely workable. Or it might be that a handful of overlooked things, finally seen together, make the whole picture make sense.
Either way, you deserve more than a placeholder.
This article is general in nature and isn't a substitute for individual medical or naturopathic advice. If you're unwell, please see a practitioner who can assess your full situation.