The stress of illness can increase basal insulin requirements in all types of people with diabetes. Being ill may also render the person with diabetes unable to monitor and manage their condition as they would normally. Some people with diabetes may associate insulin dosing with eating, so during a period of anorexia or vomiting they may feel that they do not need to take their normal insulin regimen, whereas they ought to maintain it, or even increase the dose. There is also a need to keep up carbohydrate intake.
This is a companion discussion topic for the original article at https://patient.info/doctor/endocrine-disorders/diabetes-and-intercurrent-illness