It has been said that diabetes does skip a generation, however it was referred to type 1 I beleive (autoimmune) usually in such a case another autoimmue disease had a 50% chance of being passed to the next generation..In the form of arthritus, lupus etc..Also, hypoglycemia has been found to be linked to family lines that had alcoholics. There was a weakness linked into their livers and personality behavior which lead to this. Depression as well.
It is possible if you aren't eating properly and you can have hypoglycemia not related to diabetes purely- I have the same as you in story and family background. How old are you now and have you ever had a child?