Age 25,�male�(History:�h/o stroke�10�yr�old,�recovered�70% but on�bp�medication�for�last�10�years, diagnosed as�type�2 DM @ 19�age�since that�taking�insulin and oral diabetes medicines) From last three months he�has�uncontrollable blood sugar despite�maintaining�all diabetes workout.�(�diet, exercise, sleeping, medication�etc) 1.�Insugen�50/50� 40�unit�morning�+ 40�unit�noons 2.�Metformin�1000+ teneligliptin 20�(noon) 3.NPH�26 unit before sleep�(10 pm)�(added�just 2�weeks�before) Hba1c�is�9.6 ,�after starting bed time�NPH, FBS is�now�getting 140 to 160�ranges�but high�ppbs�(280-320)�range�despite eating less and highly�fluctuations�in�RBS�(RBS�always high)� � Life style:�same food timetable�(low calorie)�/fixed moderate exercise schedule/no�alcohol/no�smoking/etc. What should do�now?�His oral medications�seem�not�working�is there any chance that he�has�type�1�diabetes�instead of�2.�If that's so how confirm that.(He is obese, so the first doctor immediately diagnosed as type�2)�I searched net and found that c-peptide test will do that, so to get correct insulin production should the external insulin need to stop one day before that test.�Or is there any test to check the cause of�hyperglycemia. Please ask�if�need�any further�information.