What exactly are high blood glucose symptoms? High blood glucose symptoms happens when ones blood sugar is too high or generally over 120 – 140mg range. High blood glucose symptoms happens diabetics eat too much sugar causing the amount of sugar to not be consumed fast enough so it goes throughout the body but the body cannot digest it or consume it quick enough and can cause serious medical side effects such as dizziness, fatigue, rapid heart rate or frequent urination just to name a few. High diabetes symptoms often times occur frequently within…