Understanding Fatigue: Causes, Symptoms and When to Seek Help

In the hustle-bustle of daily life, feeling tired occasionally is normal, but ongoing fatigue can interfere with your health, work, and quality of life. People suffering from fatigue may experience persistent low energy levels and ongoing fatigue symptoms. Identifying the underlying cause of your fatigue is the first step toward effective management.

FACTS ON THIS PAGE

• Why Am I Feeling More than Tired?
• Common Causes of Fatigue
• Lifestyle Factors (Sleep, Diet, Stress)
• Medical Conditions
• Medications
• Signs and Symptoms of Fatigue
• Physical Symptoms
• Cognitive Symptoms (Poor Concentration, Brain Fog)
• Emotional Symptoms
• Practical Tips for Managing Fatigue
• How Your GP Can Help
• Book an Appointment Today

Why Am I Feeling More than Tired?

Fatigue is more than just feeling sleepy — it’s a constant state of tiredness that can be physical, mental, or both. Normal tiredness usually improves with rest or sleep. Ongoing persistent fatigue doesn’t always resolve after a good night’s sleep and may affect motivation, concentration, and daily functioning.

Acute fatigue is short-term and often linked to temporary stress, illness, or lack of sleep. Chronic fatigue lasts for several weeks or longer and may signal an underlying medical or psychological condition.

Common Causes of Fatigue

There are many potential causes of fatigue, ranging from lifestyle factors to medical conditions. They can include:

Lifestyle Factors (Sleep, Diet, Stress)

Poor sleep hygiene, shift work, and high stress levels can contribute to ongoing tiredness. Inadequate nutrition, dehydration, and excessive caffeine or alcohol intake may also affect energy levels. In our busy lives, workplace stress and long hours is another common factor when it comes to physical and mental fatigue.

Medical Conditions

Health conditions such as iron deficiency, thyroid disorders, diabetes, sleep apnoea and infections can cause unexplained fatigue. Anxiety, depression and prolonged stress are also common contributors to ongoing fatigue. A thorough medical review is important to rule out underlying illness.

Medications

Some prescription and over-the-counter medicines can list tiredness as a side effect. Your GP can review your medications if fatigue develops after starting a new treatment.

Signs and Symptoms of Fatigue

Fatigue presents in different ways from person to person, but common symptoms are:

Physical Symptoms

• Constant tiredness
• Muscle weakness
• Headaches
• Reduced stamina

Cognitive Symptoms (Poor Concentration, Brain Fog)

• Difficulty focusing
• Memory lapses
• Slower thinking or brain fog

Emotional Symptoms

• Irritability
• Low motivation
• Feeling overwhelmed

Practical Tips for Managing Fatigue

While medical input may be necessary, simple changes can help you manage fatigue. Try:

• Maintaining a consistent sleep schedule and limiting screen time before bed.
• Eating balanced meals rich in whole foods and staying hydrated to support steady energy levels.
• Engaging in regular light exercise and relaxation techniques helps improve mood and stamina over time.

It’s important to seek medical advice if your symptoms persist or if you experience chest pain, shortness of breath, unexplained weight loss, or severe or sudden fatigue. If your fatigue symptoms last more than a few weeks, are getting worse, or are affecting your work, study, sleep, or relationships, it’s time to book a GP appointment.

How Your GP Can Help

At Nillumbik Medical Centre, our GPs can provide a comprehensive fatigue assessment. They may review your medical history, lifestyle factors, and arrange blood tests to check your iron levels, thyroid function and other indicators.

Pinpointing the cause of persistent fatigue allows for targeted treatment. Once pinpointed, management may include medication, mental health support, or addressing sleep disorders. Our GPs can also provide you with practical advice on diet, exercise and stress management strategies tailored to your situation.

Book an Appointment Today

If you are experiencing persistent fatigue, don’t ignore it. Our team at Nillumbik Medical Centre is here to help identify the cause and create a personalised fatigue management plan. Early assessment can make a meaningful difference in restoring your health and daily function, so contact us to book an appointment today.