Welcome to HCM,
Your requirement depend on your activity as you are less active requirement may come down, but it also depends on various other factors like are you newly detected diabetic Type I or very long duration, I mean many rears, and any other drugs are used or there is alcohol consumption.
1)In case newly detected diabetes
once blood sugar comes to normal level requirement may come down and in such cases some endogenous insulin
may be there.
2) In Chronic case if kidneys are affected then dose requirement may go down or even hypoglycemia
3) Many drugs cause hypoglycemia including Alcohol.
Please take care of your insulin and Diet and monitor your blood sugar level.
Take a diet which has blend of Protein,carbohydrates (Complex) and fats to meet your calories requirement.