It can get even harder in some cases. In my own case, I have the symptoms of idiopathic reactive hypoglycemia, which symptoms have been verified by no less than four independent doctors. The issue comes with the current state of medical research, in that there is as yet no common agreement between researchers about the time delays between food consumption and any subsequent hypoglycemia, and the levels of blood glucose to be used as a definition of hypoglycemia. Even two trained endocrinologists scratched their heads at what my body is doing. Essentially, I am on my own with this condition, and I need to train all relevant medical and ancillary staff that I encounter in any hospital.