Feeling exhausted all the time, even after a good night’s sleep? Constant tiredness is one of the most common complaints we hear at Pharmacyexprezz. While lifestyle factors play a role, many people discover an underlying medical reason through simple blood tests. Here are the key blood tests that can help identify why you’re always tired.
- Full Blood Count (FBC) A Full Blood Count checks your red blood cells, white blood cells, and platelets. Low red blood cells or haemoglobin can indicate anaemia — one of the most common causes of ongoing fatigue.
- Ferritin (Iron Stores) Ferritin measures how much iron your body has stored. Even if your haemoglobin is normal, low ferritin can cause significant tiredness, brain fog, and weakness. This is especially common in women with heavy periods.
- Vitamin B12 and Folate Low levels of Vitamin B12 or folate can lead to tiredness, weakness, and even neurological symptoms. Vegetarians, vegans, and older adults are at higher risk.
- Vitamin D Vitamin D deficiency is extremely common in the UK and is strongly linked to fatigue, muscle aches, and low mood. A simple test can reveal if supplementation is needed.
- Thyroid Function Test (TSH) An underactive thyroid (hypothyroidism) is a classic cause of persistent tiredness. The TSH test is a quick way to check how well your thyroid is working.
- HbA1c (Diabetes Check) Undiagnosed or poorly controlled diabetes can make you feel constantly drained. HbA1c shows your average blood sugar over the past 2–3 months.
- CRP or ESR (Inflammation Markers) These tests detect hidden inflammation or infection in the body, which can drain your energy even if you don’t feel obviously unwell.
When Should You Get Tested?
Consider blood tests if you experience:
- Tiredness that doesn’t improve with rest
- Brain fog or poor concentration
- Muscle weakness or aches
- Low mood or motivation
- Symptoms lasting more than a few weeks
Why Choose Pharmacyexprezz for Your Blood Tests?
- Convenient location in Great Yarmouth
- Quick and comfortable blood draws
- Fast results with clear pharmacist explanation
- Private consultation available
- No GP referral needed for most tests
Book Your Blood Tests Today
Stop wondering why you’re always tired. Get
the answers with professional blood testing at Pharmacyexprezz.