😴 Internal Medicine · Fatigue Evaluation

Chronic Fatigue Clinic Seoul

English-speaking evaluation for persistent tiredness, low energy, brain fog, poor sleep, anemia, thyroid imbalance, vitamin deficiency and metabolic causes.

💬 Book via WhatsApp 📞 02) 3443-7550

✅ Blood Testing ✅ Thyroid Check ✅ Vitamin Levels ✅ English Results Review

✓ Board-Certified Specialists

✓ Cause-Focused Testing

✓ English-Friendly

✓ Gangnam Location

Meet Our Doctors →

Overview

Fatigue can have many causes — testing helps narrow it down.

Chronic fatigue is more than feeling tired after a busy week. If low energy lasts for weeks or months, affects work or exercise, or comes with dizziness, brain fog or poor sleep, it deserves a proper medical review.

At Apgujeong Hana Clinic, we check common treatable causes first: anemia, thyroid disease, vitamin deficiency, diabetes risk, inflammation, liver/kidney issues, sleep problems and medication effects.

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Blood Count & Iron

CBC, ferritin and iron studies to check anemia or low iron stores.

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Thyroid & Metabolic Review

Testing for thyroid imbalance, diabetes risk and metabolic markers.

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Vitamin Deficiency Check

Vitamin D, B12 and folate testing when symptoms suggest deficiency.

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English Explanation

Results and next steps explained clearly for international patients.

When To Visit

Common fatigue symptoms we evaluate.

Fatigue can be physical, mental or both. These symptoms are common reasons patients book a consultation.

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Persistent Low Energy

Feeling tired most days, even after rest or sleep.

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Brain Fog

Poor concentration, slow thinking or reduced work performance.

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Dizziness

Lightheadedness, weakness or feeling faint during daily activity.

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Poor Sleep Quality

Waking unrefreshed, insomnia or irregular sleep schedule.

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Exercise Intolerance

Unusual exhaustion after activity or slower recovery.

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Abnormal Checkup Results

Low hemoglobin, low ferritin, thyroid abnormality or vitamin deficiency.

Testing Approach

We look for treatable medical causes first.

There is no single “fatigue test.” Your doctor reviews your symptoms, sleep, stress, diet, medications and medical history, then selects tests that match your situation.

If symptoms suggest ME/CFS, long COVID, sleep disorder or another complex condition, we explain what findings support that direction and when specialist referral may be helpful.

Possible Tests

Common fatigue blood work.

✓ CBC / hemoglobin

✓ Ferritin / iron studies

✓ Thyroid function

✓ Vitamin D / B12 / folate

✓ HbA1c / glucose

✓ Liver & kidney function

✓ Inflammation markers

✓ Electrolytes

Common Causes

Fatigue is often caused by more than one factor.

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Anemia or Low Iron

Low hemoglobin or ferritin can reduce stamina and concentration.

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Thyroid Imbalance

Underactive or overactive thyroid can affect energy, mood and weight.

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Vitamin Deficiency

Vitamin D, B12 or folate deficiency may contribute to fatigue.

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Blood Sugar Issues

Prediabetes, diabetes or unstable glucose can cause low energy.

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Sleep Problems

Poor sleep, insomnia or possible sleep apnea may need review.

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Post-Viral Fatigue

Fatigue after infection may need monitoring and careful pacing advice.

How It Works

Your fatigue evaluation, step by step.

Book Visit

Book by WhatsApp, phone or Naver. Bring prior blood tests if available.

Symptom Review

We review energy level, sleep, stress, diet, medication and medical history.

Targeted Testing

Blood tests are selected based on symptoms and likely causes.

Plan & Follow-Up

Results are explained in English with practical next steps.

FAQ

Your questions answered.

More questions? WhatsApp our English-friendly team.

💬 WhatsApp Us 📞 02) 3443-7550

Common tests include CBC, ferritin, thyroid function, vitamin D, B12, folate, glucose/HbA1c, liver, kidney and inflammation markers. Your doctor selects tests based on your symptoms.

Not always. Many conditions can cause long-lasting fatigue. ME/CFS has specific features such as severe fatigue not improved by rest, post-exertional worsening, sleep problems and cognitive symptoms.

Yes. Low vitamin D, B12 or folate can contribute to fatigue, weakness, mood changes or brain fog. Testing helps confirm whether replacement is needed.

Book by WhatsApp at +82 10-2950-7551, call 02) 3443-7550 or use Naver Booking. The clinic is at 328 Apgujeong-ro, KFC Building 3F, Gangnam-gu, Seoul.

Related Services

Find the cause of your fatigue in English.

Book a chronic fatigue evaluation at Apgujeong Hana Clinic, Gangnam — blood testing, results review and practical next steps.

✓ Blood Testing

✓ Thyroid & Vitamin Checks

✓ English Explanation