More than one???

Diabetes is always a serious thing, but it becomes more serious when you have other
diseases. You have to be careful what you eat with diabetes, but what if you had a
disease that made it even harder to choose things? Here's an example: My sister has
Type 1 and Celiac so choosing things for her to eat is hard. If she has a low blood sugar
but we don't have milk, she can't have a piece of bread, or a pack of crackers. How
would you deal with having more than one disease?