While he was injecting the second
shot of novocaine, an SVT episode suddenly triggered. Fortunately for me, it was much weaker than it used to be, only lasted 1-2 minutes maximum, then stopped. My hands shook badly for another five minutes afterwards. He let me rest for a few minutes and I was feeling normal again so we were able to continue the dental work.
I have been fine since, no more episodes, have been exercising as usual. I did call my EP.