constant fatigue and low energy
Constant fatigue and low energy are common, non-specific symptoms that require a systematic clinical evaluation to identify underlying metabolic, endocrine, or nutritional causes.
Possible causes
- 01
Iron deficiency anaemia
commonReduced red blood cell count or low iron stores limit oxygen transport, leading to persistent physical fatigue and weakness.
Evidence
- NICE CKS: Anaemia - iron deficiency (2021)
- 02
Hypothyroidism
commonAn underactive thyroid gland slows down the body's metabolism, commonly presenting as fatigue, weight gain, and cold sensitivity.
Evidence
- NICE CKS: Thyroid dysfunction - active management (2023)
- 03
Vitamin D deficiency
commonExtremely prevalent in Dubai due to sun avoidance; low levels are strongly linked to chronic fatigue, bone pain, and muscle weakness.
Evidence
- Mayo Clinic: Vitamin D deficiency symptoms and treatment (2023)
- 04
Type 2 diabetes or prediabetes
possibleInefficient glucose uptake by body cells due to insulin resistance leads to persistent systemic energy depletion.
Recommended tests
Full body blood test
→80+ marker screen — CBC, thyroid, liver, kidney, iron, vitamin D, HbA1c, lipids, hormones.
Why: Provides a comprehensive baseline screening for anaemia, thyroid function, metabolic health, and key vitamin deficiencies.
Guideline
- NHS: Common blood tests (2023)
Thyroid function panel
→TSH, Free T3, Free T4 — first-line test for fatigue, weight change, hair loss, mood.
Why: Directly evaluates TSH and free thyroid hormones to rule out hypothyroidism as a primary driver of low energy.
Guideline
- NICE: Thyroid disease assessment (NG145)
Iron & ferritin
→Ferritin, serum iron, TIBC — checks for iron-deficiency anaemia.
Why: Assesses iron stores to identify iron deficiency with or without anaemia, a frequent cause of fatigue.
GP consultation
→30–60 minute consultation with a British-trained GP — clinic, home or video.
Why: A detailed clinical consultation helps contextualise test results, explore lifestyle factors, and rule out complex causes.
Guideline
- RCGP: Clinical guidance on fatigue (2022)
When to worry
- Unexplained or unintentional weight loss
- Fever, night sweats, or swollen lymph nodes
- Shortness of breath or chest pain during mild exertion
- Sudden onset of severe muscle weakness or neurological changes
- New or worsening low mood, feelings of hopelessness, or self-harm thoughts
Sources & guidelines
This triage is grounded in mainstream clinical guidance. Every case is reviewed in person by a British-trained GP before any diagnosis or prescription.
- NICE: Myalgic encephalomyelitis (or encephalopathy)/chronic fatigue syndrome: diagnosis and management (NG206)
- NHS: 10 medical reasons for feeling tired all the time (2022)
Related
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This page is educational triage information only. It is not a medical diagnosis and does not replace a consultation with a licensed doctor. Aafiyah Care Clinic — Unit G09, Churchill Executive Towers, Business Bay, Dubai. DHA-licensed.
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"Called at 8am with a fever, had a British-trained doctor at my door by 11. He sat with me for 45 minutes — not the 5 minutes I'm used to. Prescription delivered same day. Felt like having a proper GP again."
"We finally have one doctor who knows all of us. The kids actually like going. Follow-up calls happen without us chasing. Worth every dirham."
"The 40+ marker report came back with a real conversation, not a PDF dumped in my inbox. Caught a vitamin deficiency I'd been ignoring for years."
"After surgery I dreaded going back to a hospital for dressings. Their nurse came every other day, the doctor checked in by WhatsApp. Healed faster than I expected."
"Fell ill on day two of our trip. Doctor in the suite within 90 minutes, full assessment, prescription to the hotel pharmacy. Genuinely NHS-standard care in Dubai."
"My father refuses to leave the house. Aafiyah's team comes monthly, manages his medication, and treats him with such dignity. It changed everything for our family."
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