 [ Symptoms ] blurred vision dizziness nausea hot blushes and pounding heart [ Disease ] hypertension and diabetes can kill your father if he did not respect them stick to the dietary regimen meant for diabetic patients in order not to experince troubles with his vision  retinopathy  his kidneys and his brain as wellhigh caloric diets with high cho are forbidden…otherwise he should start insulin intakefollow up measurments of blood sugar at least 5 times a day with the strips should be done diet managment must be your first prioritybest regards