Low blood sugar can be a condition alone or can be caused by a complication of diabetes or a different disease. However, it is most frequently a result of insulin intake reaction due to diabetes.

There are some symptoms of low blood sugar to look out for. However, symptoms may vary depending on the individual's case. The following are symptoms of low blood sugar:

- Sensitivity inside the mouth
- Excessive hunger
- Dizziness and shakiness
- Irritability and moodiness
- Pale skin color
- Headache and blurry vision
- Unawareness
- Excessive sweating

The symptoms of low blood sugar may be caused by other disorders or conditions. It is best to consult your physician about it to be sure.

There are several causes of low blood sugar (hypoglycemia). This includes the following:

- Excessive medications
- Skipping of meals or delays in eating
- Insufficient intake of insulin because too little food is taken

There are other rare causes of low blood sugar. Low blood sugar may occur during early pregnancy after a strenuous work out or after fasting or it can be caused by medications or too much intake of alcohol.

In diagnosing low blood sugar, different tests are conducted by a specialist. If a person suffering from hypoglycemia has diabetes, the doctor can therefore conclude that it is a complication from diabetes due to insulin. For patients who have low blood sugar (hypoglycemia) that do not have diabetes, the condition will be diagnosed using the following methods below:

- Measurement of blood glucose level while the symptoms are being experienced
- Observation of the symptoms whether they are relieved when eating foods high in carbohydrates and sugar

Test to measure insulin production may also be performed by doctors and specialized treatments will be based on the patient's condition like the age, medical history, overall medical condition and past treatments. To help detect low blood sugar (hypoglycemia) as early as possible, it is best to look for the symptoms of low blood sugar and consult a physician.