Hello Sephchu, I want to welcome you to Neuro Talk. There is also a good dental forum on this site. Use the search bar up at the top of the page if you would like to. You have found a very compassionate site, and many people will be able to say hello and address your concerns.
The most knowledgeable that I have met here is Bryanna. She has some wonderful insites on dental issues.
I have had a reaction to nerve blocks in particular. I got alot of tingling, shocky feelings for quite awhile after the proceedure. The last time I had a tooth removed last week, I was put to sleep, but still had the shot and didn't get a reaction. I am not sure why there was a difference in the two injections and their reactions. Keep posting, and someone may be able to address your concerns. I am sincerely hoping I don't have to go back for another dental visit for awhile ginnie