If blood sugar levels drop below 40 milligrams (mg) of glucose per 100 cubic centimeters (cc) or deciliter (dL) of blood (80 to 100 is normal), and individual may become unconsciousness. People with hypoglycemia can become very aggressive and lose their tempers easily. Any or all of these symptoms may occur a few hours after eating sweets or fats. The onset and severity of symptoms are directly related to the length of time since the last meal was eaten and the type of foods that meal contained.

Main symptoms of hypoglycemic coma include
1. Progressive drowsiness
2. Fruity smell in the breath
3. Nervousness
4. Loss of color
5. Abnormal speech patterns
6. Dizzy spells, and even loss of consciousness
7. Shivers and shaky nerves
8. Tiredness and continuous sweating
9. Increased hunger
10. Increased fatigue and confusion
11. Abdominal pain
12. Cravings for sweets
13. Night sweats
14. Swollen feet
15. A feeling of tightness in the chest.