Has anyone ever fainted after getting a contouring injection?

I
 got a contouring injection 3 years ago,
 and my sister who got it first said it was really, really painful,
 so I told the director a hundred times to not let it hurt and got it, but
 it didn't hurt as much as I expected.
 
But after getting the injection, I stood up and
 immediately fainted. So I collapsed on the hospital floor;;;
 The nurses came running to me in surprise and my friend and I helped me to the stable room. They laid me down there and after lying there for 30 minutes, I came out lol...
 
I heard later that it was called vasovagal syncope and
 that it can happen if you're extremely nervous or stressed.
 I'm usually really strong and have never collapsed before, so I was really scared because I thought there was something wrong with the injection. But
 it was just that I looked scared ㅠㅠㅋㅋㅋ
 
Afterwards, my friend made fun of me for fainting after getting contouring injections..ㅎ