Fatigue at 43: When Everyday Strain and Health Concerns Overlap
A nurse practitioner weighs how clinicians can investigate fatigue while recognizing the effects of stress, sleep loss and unrealistic wellness comparisons.


Fatigue deserves attention, but it doesn’t always point to a disease. In a recent clinic visit, a 43-year-old patient wondered why she no longer had the stamina she remembered from her twenties. Her examination and laboratory results were normal. She had also lost 50 pounds and felt better in several respects, yet still lacked energy.
The details of her life offered important context: she was raising three children on her own, working two full-time jobs, sleeping poorly and no longer exercising. She described feeling overwhelmed and struggling to keep up with routine demands. Those pressures didn’t prove what was causing her fatigue, but they helped frame a more useful conversation than comparing her present-day energy with her capacity at 23.
Investigating symptoms and understanding context
As a family nurse practitioner working in primary and emergency care, I regularly meet people who want to know whether a difficult stretch of low energy means something is wrong. Fatigue can be linked to conditions that warrant medical attention, including sleep apnea, anemia, thyroid disorders and cancer. A normal initial assessment doesn’t make every possible cause disappear, and a vague symptom can still be a sign of illness.
That’s why clinicians investigate. But medical tests are better suited to finding or ruling out particular conditions than to defining how much tiredness someone should expect from a demanding life. When results don’t reveal a clear cause, the person’s experience still matters. The unanswered question may be about health, about circumstances, or about both.
For many people, ordinary strain can include tiredness, disrupted sleep, anxiety or grief. These experiences can be distressing and can affect daily life, but they don’t automatically establish a chronic disease. Taking a symptom seriously means listening, assessing it and keeping the possibility of illness in view; it doesn’t require assigning a diagnosis whenever the cause remains uncertain.
Old labels, familiar worries
There’s a historical parallel. In 1869, neurologist George Beard described “neurasthenia,” or nervous exhaustion. People associated the condition with fatigue, headaches, poor sleep and concentration, and difficulty keeping pace with the demands of the age. Its popularity grew as Americans worried that industrialization and new technologies, including railroads, radios, telegraphs and newspapers, were adding too much speed and pressure to life.
Neurasthenia eventually fell out of use as a diagnosis, but the underlying complaints didn’t vanish. Today, fatigue and related experiences may be discussed through diagnoses such as chronic fatigue syndrome, autonomic dysfunction or somatic disorder. A diagnosis can give people language for what they’re experiencing. At times, though, a label may also give a medical shape to worries that arise from the pressures of everyday life. That possibility calls for care, not assumptions about any individual patient.
Medicine has a history of dismissing people’s symptoms, particularly women’s. Some patients with serious illness have been told their problems were anxiety or attributed to menstruation, then waited years to receive further investigation and a diagnosis. That record is a reason to listen closely and follow up when symptoms persist or change. It is not a reason to treat every hardship as evidence of disease, or to assume that normal test results mean a person isn’t suffering.
Why online comparisons can distort expectations
The patient in my exam room wasn’t only measuring herself against other parents or people working long hours. She was also looking at wellness influencers who appear to wake early, exercise, eat carefully and have energy left to share polished meals online. That kind of content can make an ordinary, overfull day seem like evidence that a person is failing at health.
Social platforms select what people see and often present a carefully edited version of someone’s routine. The comparison can shift from people facing similar demands to an idealized image of constant energy and self-optimization. When that image becomes the benchmark, normal limits may start to look like symptoms that must have a medical explanation.
For this patient, the combination of work, parenting, limited sleep, stress and less activity offered a plausible way to understand why her stamina had changed. It didn’t amount to a diagnosis, and it didn’t rule out the need to reassess if new concerns arose. It did help put her fatigue in context and challenge the idea that feeling unlike a 23-year-old automatically meant something was wrong.
When fatigue is affecting daily life, persists or comes with other concerning changes, discussing it with a health professional can help determine whether evaluation is appropriate. A useful conversation can consider both medical causes and the conditions shaping someone’s days. The question isn’t only whether a symptom is present; it’s how it fits with the person’s health, circumstances and expectations.
Kirsten Balin is a family nurse practitioner who works in primary care and emergency medicine in Klamath Falls, Oregon. She writes about medicine, health and modern culture on Differential Notes.
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Related topics: chronic disease, patients, physicians.