Thanks for the comments; however, my situation was very different ... I had early reactions to local anesthetics . Twice in a row when I was young after Novocain I passed out cold -- but the respective DDS's at the time had serous changes reviving me; they each told my parents that it was psychological. That affected my seeing any DDS for way too long .. now it is well known that Novocain has many negative factors. As alternatives came out and I was willing to try them with great apprehension and more knowledgeable DDS, I'd be Ok but then another reaction not quite as severe. Affected me the majority of my life until an I was having another surgery and anesthesiologist told me that can be a combination of three different things or all three at once. Regrettably not at all related to your issues but a challenge my entire life. I can only imagine what your situation must be like ....