We're talking low blood sugar (hypoglycemia). Your pancreas in this case produce too much insulin to regulate blood sugar as I understand. Not enough people take it seriously and wear their pancreas out by not regulating their diet and end up with diabetes.

I am just looking for info on natural or emergency sources of glucose or fructose or sugar or any tricks to know, in the case I don't have anything with me like glucose tablets or gel. The licorice in chewing tobacco was an example. Any more ideas? Just equipping what little brains I have to survive if this happens again.