Serious hunger
If you've already eaten but still not satisfied, or if you suddenly, feel as if you're starving, your body is telling you that it needs more sugar.
Restless nights
You are experiencing sleepless nights and unable to sleep. It may be a sign that your blood sugar is low. You can eat a sugar-free snack before bed so that it can reduce the sleep disruption.
Excessive sweating
If you are sweating excessively without warning, regardless of how warm or cold the temperature may be, you need to take more sugar.
Fatigue
Tiredness and low energy are serious signs that your blood sugar level is low. This is because your body doesn't have enough energy in the form of sugar to perform.
Vision issues
If your vision suddenly becomes unclear, a decline in blood sugar may be the problem.