Blood Work Normal but Still Sick?

Your labs came back normal. Your doctor says you are fine. And you still cannot sleep, your food does not sit well, and you feel decades older than you are. You are not imagining it. Here is what a normal result can and cannot tell you, why so many real symptoms never show up on a printout, and how Chinese medicine reads the pattern behind them.

Can you have normal blood work and still feel sick?

Yes, and it is one of the most common situations in medicine. When researchers reviewed the records of 1,000 patients at an internal medicine clinic, they counted 567 new complaints of everyday symptoms such as fatigue, insomnia, dizziness and abdominal pain. More than two thirds were tested. A physical cause was found for 16 percent.^[1]

Specialist clinics see the same thing. In a London study of new outpatients across seven specialties, 52 percent of the 550 with a final diagnosis had symptoms that stayed medically unexplained.^[2]

Unexplained does not mean imaginary. It means the tests that were run did not find the answer. A normal result is still worth having, because it makes some serious problems unlikely. What it cannot do is tell you why you feel the way you do. Reading that part is the work we do together inside Gut Brain Synchrony.

How are normal ranges for blood tests determined?

From other people. The normal range printed next to your result is a reference interval. A laboratory builds it by measuring a group of healthy people and marking where most of them fall. Its job, as a 2016 review puts it, is to help the clinician read your result against values from healthy populations.^[3]

That design is very good at spotting a result well outside where healthy people land. That is what I mean when I say a blood test finds what it is looking for once something is grossly out of range. It is much less good at noticing that something has shifted for you.

Your normal is narrower than the lab’s normal

A Danish team measured thyroid hormones in 16 healthy men every month for a year. Each man had his own set point, and his personal range was about half as wide as the range for the whole group. Their conclusion was direct: a result inside the laboratory limits is not necessarily normal for that individual.^[4]

So a value can move a long way within the printed range and still be reported as normal. That is not a failure of the lab. It is what a population range is built to do.

What is a functional gastrointestinal disorder?

It is a gut that is not working properly even though routine tests usually come back normal. These are the most common diagnoses in gastroenterology. The Rome Foundation, which writes the diagnostic criteria, now calls them disorders of gut-brain interaction and lists the problems behind them: changes in how the gut moves, oversensitivity to ordinary sensations, changes in the gut lining and immune function, an altered microbiota, and changes in how the brain processes gut signals.^[5] Very little of that shows up in a routine blood panel.

They are not rare. In a survey of 73,076 adults in 33 countries, 40.3 percent of those who answered online and 20.7 percent of those interviewed at home met the criteria for at least one.^[6]

Why sleep and digestion go wrong together

You cannot sleep, and your food does not sit well. Nothing on the printout connects the two, but the research does. A meta-analysis of 36 studies and 63,620 people found sleep disorders in 37.6 percent of people with IBS, about 2.6 times the odds seen in healthy controls.^[7] In a diary study of 24 women with IBS, a poor night predicted more abdominal pain, anxiety and fatigue the next day. Their symptoms did not predict worse sleep the following night.^[8]

Chinese medicine expects this. The Spleen turns food into blood, and the Heart needs that blood to settle the mind at night. I go through the sleep patterns in What Causes Insomnia in Chinese Medicine?, and fatigue in Why Am I So Tired Even Though I Sleep Well?

What does your tongue say about your gut health?

In Chinese medicine, a great deal. The tongue is the one internal organ you can see without a scope, and it shows the inner ecology of the body. I read four things.

Parts of this are now being measured. A Beijing team trained a computer model on 1,548 tongue images to recognize tooth marks, which they describe as related to Spleen deficiency. It was over 90 percent accurate across different cameras and lighting.^[9]

How does traditional Chinese medicine treat IBS?

By the pattern, not the label. Take two people with the same diagnosis of IBS. On paper they are the same patient. Here is how they can look to someone who reads patterns.

Person one: heavy, bloated and worse with cold

Her body feels heavy and bloated after meals, and cold drinks and raw food make it worse. Her tongue is usually swollen, with tooth marks along the edges and a thick coat. That is a clear sign of what we call dampness: a Spleen that is not transforming food and fluid, so they pool.

Her plan is warm, cooked meals and ginger tea. In a double-blind crossover study of 11 people with functional dyspepsia, 1.2 grams of ginger emptied the stomach faster than placebo, a half-emptying time of 12.3 minutes against 16.1, though symptoms during the test did not change.^[10] More on clearing dampness in What Is Dampness in the Body?

Person two: worse with stress and held-in frustration

His gut acts up when he is under stress and holding frustration in. His tongue has a red tip, sides that look tight and firm, and probably just a thin white coat. That is stuck Liver qi. The Liver keeps everything moving smoothly, and when it binds up, the gut binds up with it.

His plan is to move. In a Swedish trial, 102 people with IBS were randomized either to increase their physical activity with a physiotherapist’s guidance or to keep their usual routine. Symptom scores fell by 51 points in the active group and by 5 in the control group.^[11]

Then breathe it out. Sighing is the body’s own way of releasing stuck qi. In a Stanford trial of five minutes a day for a month, cyclic sighing, built around a long, slow exhale, improved mood and slowed breathing more than mindfulness meditation did.^[12]

And the herbs. The classical formulas for this pattern are built around bupleurum, chai hu, used for more than 2,000 years in East Asia. Its saikosaponins show anti-inflammatory and immune-modulating activity in research.^[13]

Does tailoring the treatment matter?

The best test of this in IBS is a JAMA trial in which 116 people with IBS took an individualized herbal formula written for their pattern, one standard formula, or a placebo for 16 weeks. Both herbal groups improved more than placebo, rated by patients and gastroenterologists alike. During treatment, the tailored formulas did no better than the standard one. Fourteen weeks after treatment ended, though, only the tailored group had held on to its improvement.^[14]

The patterns are not only a clinic habit. When gastroenterologists at six Chinese hospitals were taught simple pattern criteria, they agreed with Chinese medicine practitioners on 84.3 percent of 178 IBS patients. In diarrhea-predominant IBS the most common pattern was Liver depression with Spleen deficiency, at 27.5 percent. In constipation-predominant IBS, more than half had dryness and heat in the intestines.^[15]

That is why what worked for someone else might do nothing for you. Your pattern is not theirs.

Why do complex illnesses need a team?

Because no single test, and no single provider, sees the whole picture. Western medicine is very good at finding the disease that shows up on a scan or in a blood count, and treating it. The paradigm is not wrong. For chronic, complex illness it is just not complete yet.

Gastroenterology has tested this directly. In an Australian trial, 188 people with functional gut disorders were randomized to a gastroenterologist alone or to a clinic that added dietitians, gut-focused hypnotherapists, psychiatrists and biofeedback physiotherapists. Global symptom improvement was reported by 84 percent in the team clinic against 57 percent with standard care. The cost per successful outcome was also lower with the team.^[16]

I would put a practitioner who reads patterns on that team too. Not instead of your doctor. Alongside.

What to do when your labs are normal and you still feel unwell

Normal blood work, still sick: your questions answered

Why am I always tired if my blood work is normal?

Because energy is made and spent by systems a blood panel does not measure directly: digestion, sleep, stress and movement. In Chinese medicine it most often points to a Spleen not making enough qi, or to qi that is stuck rather than missing.

What is a functional disorder in medicine?

A disorder of how an organ works rather than how it looks. IBS and functional dyspepsia are the best known: normal on scans and scopes, not normal in how the gut moves, senses and talks to the brain.

Does normal blood work mean I’m healthy?

It means what was tested falls where healthy people usually fall. That rules out a lot. Health is also how you sleep, digest, think and feel. If something feels off, it is worth being heard.

Your labs are one part of the story. How you feel is the rest of it.

— Brehan Crawford, L.Ac.

References

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