Hello, I went through your query, there are variety of conditions could cause these symptoms, problems related to heart (valvular disease, arrhythmia, angina etc) , problems related to Central nervous system (vasovagal syncope), metabolic conditions like hypo or hyperglycemia, severe anemia, etc. Since it has happened during driving this should not be taken lightly please consult a MD general medicine physician for further workup.
Answered2016-06-20 13:48:48
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