When blood sugar levels rise, a number of symptoms can occur, including

  • Intense thirst
  • Weight loss
  • Increased hunger
  • Blurry vision
  • Irritability
  • Tingling or numbness in the hands or feet
  • Wounds that won't heal
  • Extreme unexplained fatigue

Sometimes, there are no symptoms with type 2 diabetes, in which case people can live for months or years with the disease without knowing it.