Fainting Goat Syndrome

I have a disturbing disorder.  Whenever I am hurt such as when I sprain an ankle, cut myself, or when I had my ears peirced at twelve I pass out.  I passed out watching Ripley's Believe It or Not when I was 8 and during a Drunk Driving Film in 10th grade.  This has always bothered me until tonight when I figured out my problem.  Some people have flight or fight response but mine is Fainting Goat Syndrome.  I am not sure how this could be.  I did grow up in the country but we never owned goats.  Perhaps my great grandparents owned goats?  Hmmmm.....