It is now almost 3 years since my diabetic diagnosis. However 29 years ago, (I know that, as my son was only a couple of month old) I had my first, what I've always termed as low blood sugar episode's. Then I was in pretty good condition, lol. Two little one's a dog to walk, didn't have a car, so walked or cycled everywhere, maybe a little overweight, but not a lot. This has persisted for all these years, I have told Dr's on many occasion's but none have ever made anything of it, and I genuinely felt terrible each time it happened
Sweating, very vague, total lack of concentration, nauseous, headache, extreme tiredness, shaking, irritable. Then as I said 3 years ago eventually diagnosed as type 2, on Metformin, and guess what I still get this!! I've told the diabetic nurse, she says good it's my body getting used to when I need sugar, the Dr told me (as it more often than not happen's mid morning), eat another breakfast! Yes that really helps for weight loss. I'm not a big fruit eater, never have been, but did for a while make myself have a piece of fruit that was not enough, I was still feeling horrendous! The only thing I have found to help is sugar, ie, a mars bar, a few biscuits, even bread and jam! I had this only yesterday
I have read recently that this could indicate pre diabetic condition, and guess what -- my son suffers with it, he went to the Dr's once and was told it was a virus! He still keeps getting it, I nag him to return to the Dr's, but typical man! So please do not dismiss your friends symptoms as jealousy or such, encourage her to seek medical help, and even accompany her, and give your opinion if need be to get the Dr to listen, because if they're like most I've seen they won't.