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What Causes Profuse Tiredness After Eating Sweets?

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Posted on Mon, 28 Sep 2015
Question: after eating hi sugar items (pancake syrup, frozen strawberries) I begin to sweat almost immediately, very profusely and I become tired. I can barely drive my car, and almost had 3 accidents the last time this happened when I ate pancakes and butter pecan syrup at I-hop. All I want to do is lie down and rest/sleep.
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Answered by Dr. Alok Sinha (43 minutes later)
Brief Answer:
It may due allergy/intolerance to some food

Detailed Answer:
Hi, welcome to HCM.
It is a wise decision to ask your health related query here.

The condition you described here appears to be an allergic situation due to some food products. Food allergy/intolerance usually causes dilatation of blood vessels causing sudden low blood pressure and constriction of respiratory passage causing poor oxygenation and related hypoxia to brain. Both these situations give rise to dizziness and fatigue. As a compensatory mechanism body immediately triggers sympathetic stimulation in order to correct blood pressure. This sympathetic activation leads to constriction of blood vessels to normalise BP, and also causes increased heart rate and profuse sweating. Due to profuse sweating there is loss of water and electrolyte which further produces dizziness and fatigue.

You are strongly advised not to take these foods/beverages again.

Hope this answers your query.
I wish you a better health.
Note: For further guidance on mental health, Click here.

Above answer was peer-reviewed by : Dr. Neel Kudchadkar
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Answered by
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Dr. Alok Sinha

Psychiatrist

Practicing since :2001

Answered : 212 Questions

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What Causes Profuse Tiredness After Eating Sweets?

Brief Answer: It may due allergy/intolerance to some food Detailed Answer: Hi, welcome to HCM. It is a wise decision to ask your health related query here. The condition you described here appears to be an allergic situation due to some food products. Food allergy/intolerance usually causes dilatation of blood vessels causing sudden low blood pressure and constriction of respiratory passage causing poor oxygenation and related hypoxia to brain. Both these situations give rise to dizziness and fatigue. As a compensatory mechanism body immediately triggers sympathetic stimulation in order to correct blood pressure. This sympathetic activation leads to constriction of blood vessels to normalise BP, and also causes increased heart rate and profuse sweating. Due to profuse sweating there is loss of water and electrolyte which further produces dizziness and fatigue. You are strongly advised not to take these foods/beverages again. Hope this answers your query. I wish you a better health.