Exhaustion, fatigue, weakness, and tiredness are all symptoms of high blood sugar.
More often than not, though, they’re just associated with high blood sugar. If you have prediabetes or diabetes, and the glucose has trouble making it into your cells, then you’re going to feel tired. Your cells use glucose for energy, and when that process breaks down, you just can’t get the energy you need. This is more than just not getting enough sleep the night before. The feeling is much stronger than that.
It’s a feeling of being persistently tired, low, drained, and downright exhausted. Serious fatigue is also a sign of other illnesses, like Chronic Fatigue Syndrome, cancer, and hormonal disorders. If you’re suffering from fatigue independent of sufficient sleep, a proper diet, and a healthy lifestyle, it’s time to see a physician so he or she can determine the root of it. When you have fatigue from high blood sugar, your blood has become sludgy and thick, and it has trouble getting your cells the oxygen and nutrients they need.