Always tired? Common reasons, and tests that help
Feeling tired for weeks is common. Often the cause is simple to find.
Reviewed by [Dr Name]Quick answer
Common reasons for feeling tired all the time include poor sleep, low iron, thyroid problems, high blood sugar, low vitamin D or B12, stress and low activity. Simple blood tests can find many of these. See a doctor if tiredness lasts more than 2–3 weeks.
Common reasons
Seven things a doctor checks.
Poor sleep
Less than 7 hours, or broken sleep.
Low iron (anaemia)
Common, especially in women.
Thyroid
A slow thyroid can make you tired and cold.
Blood sugar
High sugar can drain energy.
Low vitamin D or B12
Very common in India.
Stress or low mood
Talk to someone you trust, or a doctor.
Too little movement
Moving more often gives more energy.
Tests that help
All are in the Comprehensive check-up.
₹2,999 · [confirm inclusions]
Get help now ifTiredness comes with chest pain, breathlessness, fainting, or thoughts of harming yourself. Call 108 or 112. For mental health support, call Tele-MANAS 14416.
See a doctor soon if
- It lasts more than 2–3 weeks.
- You are losing weight without trying.
- You have fever or night sweats.
Questions
About tiredness.
Medically reviewed by[Dr Name][MBBS, MD · Reg. no.] · Reviewed [date]Often it helps find or rule out common causes.