There are many dangers of having an extremely high blood sugar level. When the insulin levels are low the glucose skyrockets, which can permanently damage the body. The damage that the body can sustain includes heart damage and the increased chance of getting: heart disease nerve damage blindness and kidney damage which can be life threatening in the end. Extremely high blood sugar symptoms include tiredness, dehydration, a very dry mouth, vomiting and nausea, excessive urination, stomach pain and other side effects.  Hypoglycemia, or extremely low blood sugar, is also very dangerous and can lead…