I have hypoglycemia. I went straight from the normal SAD diet to low carb (about 100g). I had carb flu for about 2.5 weeks but it did not involve really low blood sugar, that began to improve instantly. I could not advise going VLC immediately. Give it a good 3 months first. But stick wtih low glycemic load foods and lots of fats.
Since you have not been tested the problem you have may be something else.
"When the search for truth is confused with political advocacy, the pursuit of knowledge is reduced to the quest for power." - Alston Chase