A continuing issue for almost my entire life .. some major drug reactions during procedures --- sadly the diagnosis was that "it's psychological" different situations different medical people -- different drugs. As time went on. in each case, history showed these would fall in the category of "Big Oooopppppps" They were wrong every time --- try Thallium on for size which was used in a heart procedure or Novocain with two incidents that could have killed me.. I went to Mayo on and off over time, Mayo was the first medical org that acknowledged issues with Novocain up to and including in their formal intake documents -- thus the reason I started going there more often. This has been a serious challenge for years.