Symptoms of High Blood Sugar
A high blood sugar will be filtered by the kidney which takes quite a bit of excess water with it when it is excreted into the urine. As a result, a person with high sugar will notice an increase in urination and start to become dehydrated. In the early stages, he will become thirsty, and be able to drink sufficient fluids to keep up with the loss. As the process continues, he will lose vital elements, called electrolytes and this will cause him to become tired. As the electrolytes become more imbalanced, he may become confused, have leg cramps, and may even have a disturbance in his heart rhythm. If the sugar is high enough, it may distort the shape of the lens of the eye leading to blurry vision. Because the cells do not have enough sugar, he may notice weight loss despite a good appetite.