Always tired, even though you sleep enough
If you sleep seven or eight hours and still wake up flattened, the problem is not how long you sleep. Fatigue that does not lift with rest has a cause, and in most cases that cause is findable.
First, plainly. Fatigue that lasts more than a few weeks and does not improve after sleep, days off or a holiday is not normal and is not simply age. It is a symptom. Symptoms have causes, and most of these causes show up in ordinary blood work.
The most common causes, in order of likelihood
Iron deficiency, often without anaemia
This is cause number one in women of reproductive age. The part that is widely missed: you can have perfectly normal haemoglobin and still be running on empty. Haemoglobin falls last. What falls first is ferritin, the stored form of iron.
So a haemoglobin result alone does not answer the question. Ferritin is the marker worth looking at. Many people feel poorly at values a lab flags as normal, because the lower end of the reference range is set very low.
Thyroid
An underactive thyroid produces exactly this picture. Fatigue that does not lift, cold hands and feet, dry skin, hair thinning, constipation, difficulty losing weight, slowed thinking. It is checked with TSH, and where there is doubt with FT4 as well. The test is cheap and available everywhere.
Vitamin D
In Bulgaria deficiency is widespread, especially from October to April. The latitude does not allow enough synthesis through the winter months, no matter how much time you spend outdoors. The symptoms are non-specific and that is precisely why they are missed: fatigue, muscle weakness, bone aches, lower mood.
Vitamin B12
The groups at risk are people on vegetarian or vegan diets, people over 50, and anyone taking metformin or acid-reducing medication long term. The deficiency develops slowly, over years, and shows up as fatigue, tingling in the limbs and trouble concentrating.
Sleep apnoea
This one is missed most often, because the person has no idea they are sleeping badly. You sleep eight hours but wake dozens of times for a second or two and never reach deep sleep. Suspicious signs: snoring, a partner saying you stop breathing, morning headaches, falling asleep in front of the television in the middle of the day.
Blood sugar that spikes and crashes
If the fatigue comes in waves, especially an hour or two after eating, and lifts briefly with something sweet, the picture is different. This is not necessarily about diabetes, it is about how the body handles food. White bread and coffee for breakfast do exactly this.
When fatigue is not just fatigue
See a doctor without delay if you also have
- Weight loss without trying
- A temperature that persists without clear cause
- Night sweats that soak your clothes
- Breathlessness during effort that used to be easy
- Swollen lymph nodes that do not settle
- Blood in the stool or unusually heavy periods
- Fatigue that worsens sharply over days rather than months
None of this is a reason to panic, but all of it is a reason to be examined rather than to buy supplements.
Which tests are actually worth it
If you are going to your GP, this is a sensible minimum.
- Full blood count
- Ferritin, not only haemoglobin
- TSH
- Vitamin D, as 25(OH)D
- Vitamin B12
- Fasting glucose
- Liver and kidney markers
If all of that comes back normal and the fatigue continues, then it is worth looking harder at daily life. What you eat and when, how much you move, what the load is, and what your sleep actually looks like rather than what you assume it looks like.
What helps while you look for the cause
None of the below replaces testing. None of it does any harm either.
- Protein at breakfast. Eggs, yoghurt, cottage cheese. Not a pastry and coffee. The difference in energy before lunch is noticeable within the first week.
- Light in the morning. Fifteen minutes outdoors within an hour of waking does more for fatigue than most supplements. The circadian clock is set by light, not by the time on your phone.
- Last coffee by 2pm. Caffeine has a half-life of around five hours. Coffee at 5pm means half of it is still in you at 10pm.
- Movement, even a little. It sounds backwards, but with chronic fatigue regular light activity raises energy, while resting in bed lowers it.
- Alcohol wrecks sleep. It helps you fall asleep and takes the second half of the night away.
The common mistake
Someone feels unwell, goes to the pharmacy, and walks out with four boxes of supplements that somebody recommended. A month later nothing has changed, because they were not deficient in any of those four things. Meanwhile the real cause sits untouched.
The order is the other way round. First see what is missing, then top it up. A supplement without a deficiency is an expense, not a treatment.
Not sure where to start?
If you have already had tests and nothing was explained, call us. We will tell you honestly whether our assessment will help you, or whether you are better off seeing a doctor first.
Book a sessionNLS, Vega and EAV are wellness methods for orientation, not medical diagnostics. This article is educational and is not medical advice. It does not replace examination, testing or consultation with a doctor. Do not stop or change prescribed treatment without your doctor.