My father is having some health issue as he had gone through heart stunting surgery 6 months back and he is also a diabetic patient now from last few weeks his blood
sugar level is fluctuating he is taking insulin also but when he take insulin his sugar level drops down to 70-80 (random)and when he miss insulin and only take medicine then his sugar level gets high to 230-270(2 hrs after eating).what should he do now?