I am also like Erin- vasovagal. Although I was numb from a shot of numbing meds I still went vasovagal. But had absolutely no pain. I hate that you had the same problem. Here is more about Vasovagal syncope:
Causes
Vasovagal syncope occurs when the part of your nervous system that regulates heart rate and blood pressure malfunctions in response to a trigger, such as the sight of blood. Your heart rate slows, and the blood vessels in your legs widen. This allows blood to pool in your legs, which lowers your blood pressure. This drop in blood pressure and slowed heart rate quickly cause diminished blood flow to your brain, and you faint.
Common triggers for vasovagal syncope include:
Standing for long periods of time
Heat exposure
The sight of blood
Having blood drawn
Fear of bodily injury
Exertion, such as straining on the toilet
Symptoms
Before a faint due to vasovagal syncope, you may experience some of the following signs and symptoms:
Pale appearance to your skin
Lightheadedness
Nausea
Feeling of warmth
A cold, clammy sweat
Shellie