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Low blood sugar
I had normal fasting blood sugar but after 3 hrs after food sometimes low like 50 and 66 but sometimes normal 88 87 81 did I need 72 hrs fasting blood sugar test and night sweat and less sleep but no symptoms a days
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Based on the history, this appears most consistent with reactive (post-prandial) hypoglycemia, where blood glucose drops 2–4 hours after meals despite normal fasting levels. Intermittent readings of 50–66 mg/dL after food, with otherwise normal values (80–90 mg/dL), support this.
Absence of persistent fasting hypoglycemia and lack of severe neuroglycopenic symptoms make insulinoma or other pathological causes less likely at present. Night sweats and poor sleep may be related to glucose variability, anxiety, or autonomic symptoms rather than true nocturnal hypoglycemia.
At this stage, a 72-hour fasting test is NOT indicated unless there is documented low fasting glucose with symptoms (Whipple’s triad).
Next Steps
1. Do not undergo 72-hour fasting test at this point
2. Perform:
• Fasting blood glucose
• HbA1c
• 2–3 hour post-meal glucose during symptoms
3. Maintain a food–symptom–glucose diary
4. Eat small, frequent meals with:
• High protein
• Complex carbohydrates
• Avoid refined sugars
5. Review with a physician/endocrinologist if:
• Fasting glucose
Health Tips
• Avoid high-sugar foods, soft drinks, fruit juices on empty stomach
• Do not skip meals
• Ensure adequate sleep and stress control
• If symptoms like confusion, loss of consciousness, seizures, or fasting hypoglycemia occur → urgent evaluation required
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
7 yrs exp
Rajahmundry
Need a few details consult for further evaluation and treatment
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Dr. A Raja Prasanna Kumar
Pulmonologist
46 yrs exp
Hyderabad
Pl consult.
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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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.