they should have given me some insulin even though I was not eating. (Today that would mean take your basal, but do not bolus, except to correct highs.) My blood sugar was sky high, but we did not know that since testing blood at home was not available until the 1980s. I was hospitalized for a week and put on a drip which included insulin. I still remember coming out of that so gradually and was so happy when I had enough strength to move my arms and legs again. I think I must have come close to death. Be sure you always take your basal insulin when you are not eating, and test so you can use bolus insulin to correct highs.