Before you faint due to vasovagal syncope, you may experience some of the following:  Pale skin Lightheadedness Tunnel vision — your field of vision narrows so that you see only what's in front of you Nausea Feeling warm A cold, clammy sweat Blurred vision  During a vasovagal syncope episode, bystanders may notice:  Jerky, abnormal movements A slow, weak pulse Dilated pupils  Recovery after a vasovagal episode generally begins in less than a minute. However, if you stand up too soon after fainting — within about 15 to 30 minutes — you're at risk of fainting again.
faint due vasovagal syncope  may experience following:  pale skin lightheadedness tunnel vision — field vision narrows see only what's front nausea feeling warm cold  clammy sweat blurred vision  vasovagal syncope episode  bystanders may notice:  jerky  abnormal movements slow  weak pulse dilated pupils  recovery vasovagal episode generally begins minute  however  stand soon fainting — 15 30 minutes — you're risk fainting again
vasovagal syncope