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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What causes fainting and dizziness?

When i was 17 i started having fainting spells...they would come on real quick with dizziness, nausea, and feeling like someone turned the thermostat up in my body! I was diagnosed then with what they called Near Syncope and was told it would go away with age. Sure enough after the age of 19 it disapeared almost as quickly as it started. Now at the age of 26 its like it s back with a vengence only worse. I say worse because i don t pass out. Passing out made it better because i didn t remember the almost agonizing dizziness and i was almost fine after waking except for being very fatigued. Now...if i don t eat almost immediately when i think i should or feel just the tiniest bit of hunger...i get this rush of feeling hot, dizzy, very weak, and trouble focusing. Normall eating would make this go away...but lately food has not come to my rescue. Unfortunately this has been happening every day for the last week and i m becoming very bothered by it and almost afraid to even get up in the morning. Help!
Thu, 20 Dec 2018
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Neurologist 's  Response

Your symptoms are suggestive of a couple of different things that could be going on which involve the induction of what are known as vasovagal symptoms (with or without syncope or fainting) by a hypoglycemic state. Or you may be experiencing diurnal excess secretions of insulin through overactivation of your parasympathetic nervous system which should be investigated by a GI specialist.

There may also be hormonal imbalances in your body that could be considered in this workup which could ultimately lead to your presentation.

Hope I have answered your query. Let me know if I can assist you further.

Dr. Dariush Saghafi,
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