If he has never tested her for it, then how is he sure she has it? That is determined by a blood test..I have it & I was tested several years ago & had to be fasting for the test. And you have to be tested every hour or so that day for the test after they have you drink some glucose I believe..Basically the Dr. I was seeing at the time told me I cannot have sugar & need to eat small meals every 3-4 hours..Basically, no sweets, BUT, I later seen a nutritionist & she informed me that as long as I had it mixed in with my meals & or ate high protein foods included with the small amount of sweets, it would be ok..Not literally mixed in though ;) Just a very small peice of pie maybe while I am eating all my other food items on the plate for example..She also stressed the importance of eating breakfast within 45 minutes of waking & mixing a protein with a carb. For example 1/2 english muffin with a slice of cheese on top...When I ate or drank sugar, I would get a headache everyday, feel nauseous,VERY fatigued. I didn't know I had it until I was like 20, I could actually feel myself getting sicker just eating a cookie & had to go lay down...So, it does sound like she has it, but needs to be tested..Until then, I would recommend not giving her pops or sweets & try to have her snack & eat small meals & see how she feels..Eating the small meals somewhat levels the bloodsugar up & down rather than the drastic from up to down that someone with hypoglycemia would get after eating a full portion meal & feel the tiredness & some other symptoms..Best of luck to you!!