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Low blood sugar is also called hypoglycemia. It can happen all of a sudden or more slowly. It is most often mild and can be treated. An easy way to treat it is to eat or drink something that is high in sugar such as hard candies, glucose tablets, liquid glucose, or juice. If low blood sugar is not treated, it can get worse. Then you may have serious health problems like an inability to think normally. Your doctor will talk to you about what has caused your low blood sugar. Signs of low blood sugar are: Anger Fast heartbeat Nervousness Bad headache Shaking Sweating Feeling tired Confusion The most common causes of low blood sugar in people with diabetes are: Taking insulin or diabetes drugs at the wrong time Taking too much insulin or diabetes drugs by mistake Not eating enough after taking insulin or diabetes drugs Skipping meals Waiting to eat meals Exercising more or at a different time than usual

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