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Constant Tiredness & Weakness: Causes, Warning Signs & When to See a Doctor

Feeling tired all the time, or weak despite rest, can be due to anaemia, thyroid problems, diabetes, vitamin deficiency, poor sleep or other conditions that are worth checking.

Medically reviewed by Dr Nirupam Kalita, General MedicineLast reviewed:

Chronic fatigue (Tiredness and weakness) at a Glance

Most common causes

  • Anaemia (low haemoglobin)
  • Thyroid problems
  • Diabetes
  • Vitamin B12 or D deficiency
  • Poor sleep or stress

When to seek medical attention

  • Tiredness lasting weeks
  • Weakness with weight loss
  • Breathlessness or palpitations
  • Persistent low mood
  • Tiredness affecting daily life

Specialist: Dr Nirupam Kalita · General Medicine

What is Chronic fatigue (Tiredness and weakness)?

Everyone feels tired sometimes. Fatigue becomes a medical concern when low energy and weakness persist for weeks, are not relieved by rest, and start to affect work, study or daily life. Constant tiredness is one of the most common reasons people see a physician, and it often has a treatable cause such as low iron, a thyroid imbalance, uncontrolled blood sugar or a vitamin deficiency. A simple evaluation can usually find the reason.

Common Causes

Anaemia

  • • Pale skin
  • • Breathlessness on exertion
  • • Palpitations
  • • Tiredness even after rest

Thyroid Problems

  • • Weight changes
  • • Feeling cold or hot
  • • Mood changes
  • • Sluggishness

Diabetes

  • • Increased thirst
  • • Frequent urination
  • • Tiredness
  • • Slow healing

Vitamin Deficiency / Poor Sleep / Stress

  • • Low energy
  • • Poor concentration
  • • Disturbed sleep
  • • Low mood

Tired all the time? Find out why.

Symptoms That Should Not Be Ignored

  • Tiredness lasting more than a few weeks
  • Weakness with unexplained weight loss
  • Breathlessness, chest discomfort or palpitations
  • Very pale skin or dizziness
  • Persistent low mood or loss of interest
  • Fatigue that stops you doing daily activities

How Doctors Evaluate Chronic fatigue (Tiredness and weakness)

Your consultation may include: a detailed history of your energy, sleep, diet and mood, physical examination, blood tests (haemoglobin, thyroid, blood sugar, vitamin levels), and further tests only if needed. Finding the cause means the tiredness can be treated at its root rather than just "pushed through."

Available Care at Healthwrx

Fatigue evaluation
Anaemia
Thyroid disorders
Diabetes screening and control
Vitamin deficiency
General health and preventive check-ups

Meet the Specialist

Dr Nirupam Kalita, General Medicine specialist at Healthwrx Guwahati

Dr Nirupam Kalita

General Medicine

MBBS, DNB (General Medicine) · 8+ years

Specialist in general medicine with comprehensive care approach.

Frequently Asked Questions

Chronic fatigue (Tiredness and weakness) Care in Guwahati

Patients from GS Road, Dispur, Ulubari, Chandmari, Six Mile, Ganeshguri, Rehabari and Kahilipara can consult our General Medicine specialist at Healthwrx. Clear answers and treatment close to home.

Related Pages

Concerned about chronic fatigue (tiredness and weakness)?

Book an appointment with our general medicine specialist today.

Common Questions

When is fatigue a sign of something serious?

Fatigue with significant weight loss, breathlessness, chest discomfort or fainting should be evaluated promptly.

Which doctor should I see for constant tiredness?

A general physician (general medicine specialist) is the right first doctor to investigate ongoing tiredness.

Can tiredness be fixed?

Often yes. Most causes of fatigue, such as anaemia, thyroid issues or vitamin deficiency, are treatable once identified.

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