Synco-what?

Though I pride myself on my large vocabulary, I've had my troubles recently . . . and now I'm faced with writing the most difficult sentence in my career, and it is about learning the clinical term for something that afflicts me, but I really do not want to write this sentence, for reasons I will soon explain-- and I suffer this solely for you, my diligent readers; last Wednesday in the English Office, my colleague Rachel said a string of words that sounded nothing like English: "He had a vasovagal response . . . it's a syncope," and so I asked her to explain and during her explanation, I started feeling lightheaded and my fingers started tingling and I got a strange sensation in my chest and I felt very nervous . . . almost as if I was going to pass out . . . and that's when I learned the truth: I often suffer from vasovagal responses, especially when people are talking about blood and fainting, which is a common trigger for the response . . . not that I mind actually seeing blood-- but I have trouble thinking about it (probably due to my gigantic imaginative brain) and so even as I write this sentence in the school library, I feel as though I might plant my face into the keyboard, but I soldier on anyway, dizzy but validated, because my response has a definition and and so I am not a freak.