Almost fainted

[Idunnowhattonameme]

I'm not sure if I have hypoglycemia or not. We haven't done any tests or such. Today about an hour after I had eaten my toast for breakfast, I got this random feeling of dizziness. Thighs went blurry and my mind was racing. I started swaying and had a heat flash. Nothing else at all. Wasn't able to eat as I didn't have anything with me but I was perfectly fine afterwards. I have also had some typical hypoglycemia symptoms before but we aren't sure. I am also not diabetic as far as we know.