High levels of blood glucose

• A simple fasting blood test can determine if blood sugar levels are elevated. For most people, blood sugar levels should be between 70 and 110 mg/dl.
  
  

Increased Urination

• Having excess sugar in the urine can cause increased and frequent urination. This can lead to dehydration.
  
  

Thirstiness

• Increased urination causes dehydration, which in turn leads to excessive thirst.
  
  

Hungriness

• Individuals with high blood sugar often notice an increased appetite.
  
  

Tiredness

• A person with high blood pressure may feel more fatigued than usual.
  
  

Vision and Healing Problems

• Some individuals may experience blurry vision. Many individuals with diabetes will notice that they are slower to heal from sores and other abrasions. Also, they may have various infections more often.