I am having a minor brain surgery procedure done in a few weeks and would like to know more about the anesthesia part than anything else. I take about 40mg of methadone a day to help with opiate withdrawl and have heard all the horror stories about death when taking methadone and xanax and just wondered if this is also true with anesthesia?

I'm so nervous and do not want to mention it to my doctor infront of family but even if I did, the nurse went through the information about anesthesia faster than you get your food from a drive thru and now im FREAKING OUT! please help... and dont just scare me :-(