Feeling tired all the time, even after a good night’s sleep? Unexplained fatigue is one of the most common complaints we hear at Pharmacyexprezz. While occasional tiredness is normal, constant exhaustion often has an underlying cause. Here are the most common reasons for unexplained fatigue.
- Iron Deficiency or Low Ferritin Low iron stores are one of the top causes of unexplained fatigue. Even if your haemoglobin is normal, low ferritin can leave you feeling drained and weak.
- Vitamin B12 Deficiency Vitamin B12 is essential for energy production and nerve function. Deficiency is common in vegetarians, vegans, and older adults, leading to tiredness, brain fog, and tingling sensations.
- Vitamin D Deficiency Especially common in the UK during autumn and winter. Low Vitamin D levels are strongly linked to fatigue, muscle aches, and low mood.
- Underactive Thyroid (Hypothyroidism) An underactive thyroid slows down your metabolism, causing persistent tiredness, weight gain, and feeling cold.
- Poor Sleep Quality Even if you sleep 8 hours, conditions like hay fever, sleep apnoea, or restless legs can prevent deep, restorative sleep.
- Stress and Anxiety Chronic stress keeps your body in “fight or flight” mode, draining your energy reserves over time.
- Diabetes or Prediabetes Fluctuating or high blood sugar levels can cause significant fatigue. An HbA1c test can detect this early.
- Anaemia Reduced red blood cells mean less oxygen reaches your tissues, leaving you exhausted.
When Should You Get Checked?
Book a general health blood test if you experience unexplained fatigue along with:
- Brain fog or poor concentration
- Shortness of breath
- Pale skin or brittle nails
- Muscle weakness
- Symptoms lasting more than a few weeks
Get Answers at Pharmacyexprezz
We offer convenient testing for:
- Ferritin & Iron Levels
- Vitamin B12
- Vitamin D
- Thyroid Function
- HbA1c (Diabetes Check)
- Full Blood Count
Our pharmacists explain your results clearly and recommend the best next steps.
Book Your Fatigue Blood Tests Today
Stop guessing why you’re always tired. Get the answers with professional blood testing at Pharmacyexprezz in Great Yarmouth.