Sehat · energy & strength · Guide 10
Body weakness ke karan: thakan aur kaunse test zaroori hain
Why tiredness and low energy stay, which ordinary blood tests usually help, and which signs need a doctor first.
Dr. D.K. Sharma, BAMS6 min read
The short answer
About 55 seconds to readFeeling tired now and then is ordinary. Weakness in the body (kamzori) or tiredness (thakan) that lasts for weeks, or keeps you from your normal day, has a reason worth finding.1 Often it is sleep, stress, food or a slow recovery after an illness; sometimes it is anaemia, thyroid or sugar.1 A few ordinary blood tests usually tell these apart, and they come before any tonic.
Urgent signs: sudden weakness or numbness on one side, a drooping face, chest pain, fainting or severe breathlessness need emergency care now; the full list, including the days after dengue, is under "When it can't wait".12
Key points
Key points from this guide
Each line is quoted word for word from the section it links to.
Contents 10 parts · 6 min
Thakan ke karan: common reasons it stays
Why you feel weak is often more than one thing at once, so check every cause below that fits you1:
- Sleep: too little, broken, or disturbed by snoring and pauses in breathing.
- Food and appetite: small or irregular meals; little iron or B12 in the diet. B12 comes mainly from animal foods, including milk and curd.4
- Blood and hormones: anaemia, an underactive thyroid, diabetes.3
- Recovery after illness: dengue, typhoid or a long fever can leave appetite and stamina low for weeks.
- Mind and workload: stress, worry and low mood; long shifts with no real rest.
- Medicines and habits: some medicines, alcohol, a lot of tea late in the day.
Kaunse test zaroori hain: tests that usually help
Not everyone needs every test; your history decides.1 The ones most often useful:
- Complete blood count and ferritin (iron stores), for anaemia, especially with heavy periods.3
- Thyroid (TSH), for an underactive thyroid.3
- Blood sugar (HbA1c), for diabetes, especially with thirst and passing urine often.
- Vitamin B12, especially if you eat little dairy or take some long-term medicines.4
- Vitamin D, in some cases.5
Bring earlier reports with dates; a change over time can matter as much as one number.
What you can start now to reduce weakness
- A fixed wake-up time, and seven to nine hours in bed.
- Regular meals with dal, vegetables, and milk, curd or eggs if you eat them.
- A short walk most days, building up slowly, especially after an illness.
- Less tea and coffee after mid-afternoon.
The full home-care answer, and what treatment adds once the reason is known, is in tired all the time.
Belief vs fact
Belief: "Thakan means the body needs a tonic or a multivitamin." What is more accurate: low iron, an underactive thyroid, poor sleep and a slow recovery after dengue all feel like "no energy", and they need different things. A tonic taken before the reason is known can delay finding it.
When it can't wait
Urgent signs
Get urgent in-person care now for:
- sudden numbness or loss of strength on one side, a drooping face or confused speech;
- chest pain, fainting or severe breathlessness;
- in the days after a dengue fever settles: severe stomach pain, repeated vomiting, bleeding gums or nose, blood in vomit or stool, or unusual drowsiness.12
See a doctor soon for weight loss without trying, night sweats, a fever that keeps returning, or breathlessness on small efforts. If low mood comes with thoughts of harming yourself, call 112 or Tele-MANAS on 14416 (toll-free) today.67
When reading is not enough
If tiredness or weakness has lasted for weeks, a consultation can find the reason before you spend on tonics. Dr. D.K. Sharma (BAMS) asks what changed and when, then goes through sleep, food, activity, stress, periods, illnesses and every medicine you take, and tells you which tests are worth doing first. The consultation is ₹500, in person in Ludhiana or by video, and a personalised Dinacharya (daily-routine) guide follows. Book a consultation · Consult by video
Tiredness and weakness: what a doctor checks · Healthy weight gain · All Sehat concerns
A one-week note to bring
- When the tiredness began, and any illness before it.
- Your bedtime and wake-up time each day.
- A normal day of food, honestly.
- Tea, coffee, alcohol and tobacco.
- Every medicine, tonic and supplement (bring the strip or bottle).
- Recent blood reports, with dates.
Questions people ask
What is the most common reason for weakness in the body?
For most people it is everyday: short or broken sleep, stress, skipped meals or a slow recovery after an illness.1 The commonest medical reasons are low iron (anaemia), a thyroid problem, high sugar and low vitamin B12, which ordinary blood tests can find.134
Weakness in one arm or leg, or on one side of the face, is different and needs emergency care.
My reports are normal, but I'm still tired. What now?
Normal reports rule out some causes, and they point to sleep, stress and routine as the next things to look at; the one-week note above is a good place to start. How the consultation helps is in tired all the time.
How long does tiredness last after dengue or typhoid?
Feeling drained for a few weeks after a significant illness is common, and it usually improves gradually with food, sleep and a slow return to activity. Tiredness that isn't improving, or is getting worse, deserves a review; sometimes anaemia or another effect of the illness is still there.
Is there a medicine for weakness in the body, or should I just take a multivitamin?
Not before you know the reason. If a test finds low iron, low B12, an underactive thyroid or high sugar, the treatment is aimed at that cause.34 Tired all the time explains the rest, and what Dr. Sharma decides after an assessment.
Is vitamin D always the reason?
No. Low vitamin D is common, but it is only one possible reason, and the others are checked too.5
Sources
- NHS. Tiredness and fatigue. nhs.uk.
- World Health Organization. Dengue and severe dengue (fact sheet). who.int.
- NHS. Iron deficiency anaemia; Underactive thyroid (hypothyroidism). nhs.uk.
- NHS. Vitamin B12 or folate deficiency anaemia. nhs.uk.
- NHS. Vitamin D (Vitamins and minerals). nhs.uk.
- Ministry of Health and Family Welfare, Government of India. Tele-MANAS, 14416. telemanas.mohfw.gov.in.
- Government of India. Emergency Response Support System, 112. 112.gov.in.
A source list shows what informed the guide. It is not a sentence-by-sentence review.
Written by Dr. D.K. Sharma, BAMS. Medical content approved by Dr. D.K. Sharma.
Reviewed by Dr. D.K. Sharma. Approval recorded on 8 November 2026 for this exact text.
About this guide
- Written by
- Dr. D.K. Sharma, BAMS
- Reviewed by
- Dr. D.K. Sharma (approval recorded on 8 November 2026 for this exact text)
- Reading time
- 6 minutes · 1183 words
- How we review
- BharatClinic editorial policy
The author link goes to /sexologist-in-ludhiana/, as on the live page. A neutral author profile URL would suit guides on piles and digestion better.
Questions or corrections: drdksharma@bharatclinic.com
