My daughter is 11, she has been having her vision go black and she feels like she is going to pass out. She has been to the Dr. And has had blood work done an EKG, and a MRI all came back normal. She did the 3 hour glucose test and her numbers were 97, 68, 76, then 70. Dr said she is hypoglycemic, but I don't think that is what is wrong. She has a meter to test herself and when she does the numbers are between 80 and 150. She was told to eat lots of small meals and snacks, but it keeps happening. She has to go see a neurologist in December to see what they have to say. Just wanted to know what could be wrong with her.