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Intermittent tiredness/drowsiness
I am 42, male.
For the past few months, I sometimes get sudden tiredness, drowsiness and a heavy feeling for a few hours.
The strange thing is that I may be completely normal and active for several days, then suddenly it happens again.
During the episode:
BP is normal.
Pulse is normal.
Blood sugar is normal.
I am not physically weak and can still walk/exercise normally.
No unexplained weight loss.
ECG, echo, TMT, brain scan and recent blood tests have been normal.
Has anyone experienced this kind of intermittent tiredness/drowsiness? What was the cause in your case?
Answers (21)
If you would like to discuss your concern in more detail, please feel free to contact me on WhatsApp at nine one one nine two five five six nine nine. Alternatively, you can connect with me through the Practo app for a detailed consultation
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If you would like to discuss your concern in more detail, please feel free to contact me on WhatsApp at eight six one nine six six nine nine zero six. Alternatively, you can connect with me through the Practo app for a detailed consultation
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Take balanced diet, drink more water. Ensure bowels are clean daily.
Please share details of your symptoms then I can help you further.
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kindly do connect and consult with me for better treatment plan and advice on your case via PRACTO app
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Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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Dear Sir, recurrent episodes of tiredness and drowsiness can have several causes, including sleep disorders, anemia, thyroid problems, vitamin deficiencies, or medication side effects. Your previous normal reports are reassuring, but further evaluation may be needed to identify the cause.
Next Steps
* Consult a physician for a detailed clinical evaluation.
* Review previous reports and medications.
* Consider CBC, thyroid function, vitamin levels, and sleep assessment as clinically indicated.
Health Tips
* Maintain 7–9 hours of sleep and stay hydrated.
* Eat regular, balanced meals.
* Avoid driving during episodes of drowsiness.
* Seek urgent medical care for fainting, confusion, chest pain, breathing difficulty, or sudden weakness.
Kindly book a consultation for proper evaluation and personalized medical advice.
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Intermittent episodes of tiredness and drowsiness can occur due to poor sleep, sleep apnea, thyroid dysfunction, anemia, medication effects, or other metabolic causes.
Normal initial investigations do not rule out all possibilities.
Next Steps
Please consult for detailed evaluation, including sleep history and review of previous reports. If episodes are associated with confusion, fainting, chest pain, or breathlessness, seek urgent medical care.
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Go for some blood tests to evaluate your condition -
S.TSH, T3, T4
S.VIT D3
S. CALCIUM
S. PHOSPHATE
please consult with report.
Your history is needed.
Next Steps
Do meditation,Yoga
Drink plenty of water,add ORS also
Add dryfruits in your diet
stay healthy!
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Need further evaluation even if initial tests are normal please book a consultation with me to review your sleep pattern, medications and reports and identify possible causes systematically.
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Dr. Sumit Verma
General Physician
5 yrs exp
Kanpur
Hello !!
1 # Eat a balanced diet
Plenty of vegetables, fruits,
whole grains, pulses, nuts, and seeds.
Limit ultra-processed foods, excess sugar, and excessive salt.
Choose healthy protein sources and healthy fats.
2 # Stay physically active
Aim for at least 150 minutes of moderate exercise per week.
Include strength training 2–3 times weekly.
3 # Maintain a healthy weight
Excess body weight increases the risk of many chronic diseases.
4 # Get adequate sleep
Most adults need 7–9 hours of quality sleep each night.
5 # Stay hydrated
Drink enough water throughout the day.
6 # Avoid tobacco and limit alcohol
Smoking and tobacco use significantly increase disease risk.
7 #Manage stress
Meditation, yoga, hobbies, social connections, and relaxation techniques can help.
8 # Practice good hygiene
Wash hands regularly and follow food-safety practices
9 # Have regular health checkups
Monitor blood pressure, blood sugar, cholesterol, dental health, and vision as recommended.
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Dr. Gaurav Jaiswal
General Physician
7 yrs exp
Jhansi
Avoid fried and spicy food
Water intake more
Green leafy vegetables more
Fiber meal
Walk
Do connect and consult
Will help you
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
7 yrs exp
Rajahmundry
Need a few more details please consult for further evaluation and treatment
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Dr. Das Kashyap Dinesh
General Physician
2 yrs exp
Surat
Hello,
Intermittent episodes of tiredness, drowsiness and a heavy feeling despite normal BP, pulse, blood sugar and initial investigations can have several causes. Possibilities include inadequate or poor-quality sleep, obstructive sleep apnoea, medication effects, anaemia, thyroid dysfunction, and metabolic abnormalities. Stress or mood-related factors may also contribute.
Next Steps
Suggested next steps:
1. Consult a physician for a detailed history, examination and review of previous investigation reports.
2. Review sleep duration, snoring, witnessed pauses in breathing, daytime sleepiness, medications and substance use.
3. If not already checked, consider CBC, TSH and relevant metabolic tests guided by clinical assessment.
4. If there is significant daytime sleepiness or snoring, evaluation for obstructive sleep apnoea may be appropriate.
Keep a diary of episodes, including their duration, sleep the previous night, meals, medications and associated symptoms.
Health Tips
Seek urgent medical care if an episode involves confusion, fainting, new weakness or numbness, speech difficulty, chest pain or breathing difficulty. Avoid driving or operating machinery when drowsy.
A few questions would help narrow the possibilities: How many hours do you sleep, do you snore, and do these episodes occur after meals or at a particular time of day?
Regards.
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Dr. Sakshi Verma
General Physician
2 yrs exp
Bilaspur
Hello !
Get checked for iron deficiency, thyroid dysfunction, or vitamin B12 deficiency, if not already evaluated.
Medication effects, dehydration, irregular meals, or stress.
Next Steps
You can Consult with me for further evaluation.
do CBC, ferritin/iron studies, TSH, vitamin B12, electrolytes, renal and liver function test
Health Tips
Maintain a regular sleep schedule, stay hydrated, eat balanced meals at regular intervals, and avoid excess alcohol
Also Normal BP, pulse, glucose, ECG, echo, TMT, and brain imaging are reassuring, but they do not exclude every cause
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Dr. Divyansh Jain
General Physician
1 yrs exp
Ghaziabad
Hello,
Your episodes of sudden tiredness, drowsiness, and heaviness lasting a few hours warrant further evaluation, even though your cardiac investigations, brain scan, and blood tests are reportedly normal.
Possible causes include sleep disorders (particularly obstructive sleep apnoea), poor sleep quality, thyroid dysfunction, nutritional deficiencies, medication effects, or stress-related fatigue.
It is important to distinguish excessive sleepiness (an urge to fall asleep) from general fatigue, as they may have different underlying causes.
Normal ECG, echocardiography, and brain imaging are reassuring but do not exclude sleep-related or metabolic disorders.
Next Steps
Consult an internal medicine physician for a detailed assessment. Review previous investigations, particularly CBC, TSH, vitamin B12, blood glucose, and kidney and liver function tests. Consider screening for obstructive sleep apnoea, especially if you snore, wake unrefreshed, or experience daytime sleepiness. A sleep study may be indicated. Review medication use, caffeine intake, sleep patterns, and psychological stress. Maintain a symptom diary documenting sleep duration, meal timings, episodes of drowsiness, and possible triggers.
Health Tips
Maintain consistent sleeping hours, aim for 7â9 hours of quality sleep, stay hydrated, and avoid excessive caffeine. Avoid driving or operating machinery during episodes of drowsiness. Seek urgent medical attention if symptoms are accompanied by fainting, confusion, chest pain, breathing difficulty, or sudden neurological changes. My recommendation: Since your cardiac and neurological investigations are reassuring, a structured evaluation of sleep quality and other reversible causes would be a reasonable next step rather than repeating extensive scans. Wishing you good health!
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Mr. Ragib Javed
General Physician
Lucknow
As per your given history ..Most probably you are suffering from Vitamin’s Deficiency
Next Steps
Add Multivitamin Tablets to your diet
And
Get your Vit B12 and Vit D values checked!!
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Dr. Praful Mahamuni
General Practitioner
20 yrs exp
Nagpur
Hello,
Take Balanced diet.
For diet details and ePrescription consult by practo app.
Thanks.
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Dr. Suraj Sharma
General Practitioner
4 yrs exp
Jaipur
Do consult
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Dr. Ankita Gahlot
Obstetrician
12 yrs exp
Bangalore
With your heart, brain and metabolic tests all coming back normal, episodes like yours often trace back to a sleep problem such as mild obstructive sleep apnea, even when there's no obvious snoring. A thyroid or vitamin deficiency can also cause this kind of on-and-off daytime drowsiness.
Next Steps
Ask your physician about checking your thyroid and vitamin B12 and D levels if these haven't been tested recently. A sleep study is also worth considering, since poor-quality or fragmented sleep often shows up as exactly this kind of drowsiness.
Health Tips
Please see your doctor sooner if these episodes get more frequent, last longer, or come with confusion or trouble waking up.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.