” No matter what type of diabetes you have, it can lead to excess sugar in the blood that does not absorb into the cell like normally causing hyperglycemia. Too much sugar in the blood can lead to serious health problems.  Diabetes symptoms depend on how high your blood sugar is. Type I known as juvenile diabetes.  Some people, especially if they have prediabetes or type 2 diabetes, may not have symptoms. In type 1 diabetes, symptoms tend to come on quickly and be more severe .  Type 2 diabetes used to be known as adult-onset diabetes, but both type 1 and type 2 diabetes can begin during childhood and adulthood.  Still Type II DM most of the times you get it 40 yrs old and up; not as soon as Type 1 (usually in childhood or teen years you get it).   Type I exposes the person to high sugar in the intensity &/or length of free sugar in the blood outside the cells due to the age they got the disease, that causes the S/S & complications to arise sooner than Type II patients.”.

MAYO CLINIC