I recently had dermafiller injections in my tear trough area. I have a history of occasional vasovagal syncope, and I had a horrible episode just as the injecting nurse was finishing - I passed out, my eyes rolled into the back of my head, I made gurgling sounds, and she thinks I even stopped breathing for some time - I turned purple! I came out of it OK, but I was tired for a few hours. Are there medications or special precautions Drs. can take for me, or am I just a bad candidate?