Conclusions: Although fasting hypoglycemia is characteristic of patients with insulinoma, postprandial symptoms have been reported with increasing, albeit low frequency.

Results Insulin autoimmune syndrome is caused by autoimmune and self-antibody with fasting or reactive hypoglycemia, which the fasting hypoglycemia can be especially difficult to treat.

The levels of fasting blood glucose and insulin were not related with the hunger feeling in non hypoglycemia condition in diabetics.