You can't always prevent hypoglycemia, or low blood sugar, and some people may not feel it when it happens. But by monitoring your blood sugar and knowing the symptoms, you can treat it before it gets dangerous.
Sweating, hunger, pale skin, and trouble focusing are symptoms of low blood sugar.
If your blood sugar is low when you test it,
take some quick-acting sugar like juice, a tablespoon of honey, or 4 teaspoons of sugar. Wait 15 minutes, check your blood sugar. If it is still low, have some more sugar and wait another 15 minutes. Repeat until you feel normal.
If you can’t check your blood sugar
but are feeling shaky or have other low-blood sugar symptoms, you should also take some quick-acting sugar. Wait 15 minutes to see if you feel better. If not, repeat the process -- eat, wait, and see how you feel -- until you feel better.