Yes,it is when someone with type 1 diabetes develops insulin resistance, the key feature of type 2 diabetes.Someone with double diabetes will always have type 1 diabetes present but the effects of insulin resistance can be reduced somewhat.
With time, raised blood sugar levels can damage the blood vessels and nerves that control the heart. Additionally, people with diabetes are also more likely to have other conditions that raise the risk for heart disease such as high blood pressure and deranged cholesterol or triglyceride levels.
Insulin causes decrease in blood sugar leading to loss of consciousness and sometimes convulsions too, when used for reasons other than treating Diabetes where sugar levels are high to start with.
According to recent research, type 2 diabetes cannot be cured, but individuals can have glucose levels that return to non-diabetes range, (complete remission) or pre-diabetes glucose level (partial remission)
A reading of 160 mg/dl or higher is typically considered high blood sugar (hyperglycemia).
Diabetes mellitus causes blood vessel damage, vascular remodelling leading to increased peripheral artery resistance. Also, body fluid volume increases in response to insulin resistance-induced hyperinsulinemia and hyperglycemia. Both increased peripheral vascular resistance and body fluid volume lead to increase in systemic blood pressure causing Hypertension.