If Your Health Checkup Is Normal but You're Still Tired

Why you're this tired when your tests are normal

Key points in 30 seconds

1. Being tired with normal test results is actually common. Out of 100 people who see a doctor for tiredness, only 4 or 5 turn out to have a serious illness.
2. So you can let go of the thought "Am I just making a fuss?" One in 4 people feels fatigue, and for one in 13 it lasts more than six months.
3. If your tests are normal, there are four things to look at: when you're tired, how you sleep, how you've been feeling lately, and whether your days are all over the place.
4. What's most often found alongside fatigue isn't a serious illness but depression. It's about 18 in 100, four times more common than physical illness.
5. But if you're losing weight for no reason, have a fever or wake at night from pain, seeing a doctor comes first, not this list.

What we often hear

• "They say all my tests are normal, so why am I so tired?"
• "Even if I catch up on sleep over the weekend, Monday feels the same."
• "Without coffee, I can't get through the afternoon."
• "My tests are normal, so I wonder if I'm just making a fuss."

Your health checkup report is lined with "normal." You feel relieved, but something doesn't add up.

First, let go of that thought

Let us put it in numbers.

When surveys from several countries were pooled and analyzed, one in 4 people felt fatigue, and for one in 13 that fatigue lasted more than six months.

And when people who see a doctor because they're tired are tested, a serious illness is found in only 4 or 5 out of 100.

That means fatigue with no illness showing up on tests is far more common. It doesn't mean the fatigue isn't real. It means the cause lies outside what the tests check.

This study was published in an international journal, with Dr. Nahyun Park of our clinic as co-first author.

If your tests are normal, look at these four things

One: when during the day is it hardest?

For just one week, write down when during the day you feel worst.

• Whether mornings are the worst and it eases in the afternoon
• Whether you crash in the afternoon
• Whether you feel especially heavy after meals
• Whether it hits you the day after you've been active

Tiredness may all look the same, but when the hard times differ, the reasons differ. If mornings are hard, we look at sleep and mood. If it's after meals, we look at digestion.

Two: how do you sleep?

It's not "how many hours did I sleep" but "what kind of sleep was it."

• Whether you wake during the night (including brief wake-ups you don't remember)
• Whether you snore
• How many days a week you wake up feeling refreshed

One survey found that more than one in 3 adults wake during the night more than three times a week. Broken-up sleep doesn't leave you refreshed, even if you're in bed for a long time.

If you snore heavily or family members have said "it looks like you stop breathing," then getting checked at a place that does sleep studies comes first.

Three: how you've been feeling lately

We say this carefully, but the numbers are clear.

The most common thing that comes with fatigue wasn't a serious illness but depression. It was about 18 in 100, more than four times as common as physical illness.

• Whether things you used to enjoy have lost their appeal along with the tiredness
• Whether mornings feel especially heavy
• Whether you've been feeling low for weeks

If this sounds like you, you need to look at your mood as well, not just the fatigue. If needed, getting care for that may be the fastest way forward.

Four: are your days all over the place?

• Whether your mealtimes are different every day
• Whether you skip meals
• Whether you always feel bloated
• Whether your sleep times on weekdays and weekends are very different

Even if your test results are normal, if the times you eat and sleep change every day, your body doesn't get a chance to repair itself. This part, which tests don't pick up, is most often where the answer comes from.

Exceptions that come before the four

If you have any of these, seeing a doctor comes first, not this list.

• Losing weight for no reason
• Having a fever
• Waking at night from pain
• Black stools or stools with blood
• A lump you can feel

Also, if it's been more than a year or two since your last blood test, the right order is to recheck basics such as anemia and thyroid first.

Our care follows this order exactly

First, we check what tests can check. A blood test looks at anemia and thyroid, a body composition test looks at your muscle and fat, and a brain wave test looks at how tense your brain is. If there are warning signs, we first refer you to a place that can do more detailed tests.

Next, we look at what tests don't show. We press on your abdomen, take your pulse and look at your tongue. The more normal your tests are, the more likely the clue comes from here. If you bring notes on the four things above, it goes much faster.

And we restore what has broken down first. If your sleep has fallen apart, we start with sleep. If your digestion has, we start with digestion. We use acupuncture, pharmacopuncture and herbal medicine made up based on your test results. We repeat the measurements taken before treatment and compare.

If we judge that depression is at the center of it, we'll also recommend an evaluation by a psychiatrist.

What we're aiming for

Weekends when you don't need to catch up on sleep. Afternoons that keep going without coffee.

And no longer thinking, "Am I just making a fuss?"

That's part of the recovery we hope for, too.

How quickly you get better varies from person to person depending on the cause. But you can start today: for just one week, write down when you feel worst.

If you've been frustrated because your test results are normal but your body isn't, start by checking the four things that fill that gap.

For questions or appointments, message us in English through the messenger at the bottom right of the page, or call +82-53-716-1175.

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We've summarized how common fatigue is and what needs to be ruled out, together with the original studies, in the director's column Fatigue that doesn't go away with rest: is it an illness?.