I got very dizzy and fell down after not eating for 12 hours, is that normal ?!

I got very dizzy and fell down after not eating for 12 hours, is that normal ?

I ate at 3.am and, went to bed .I woke up and deided to wash my hair before I ate, but at around 3.00 pm , while I was washing my hair. I got really nauseous, my vision got blurry , i got dizzy and i fell down (but i was still consious) . I figured, it may be low blood sugar so i had a teaspoon of sugar and then It was better. Its never happened to me before and i wasn't even that hungry before i started washing my hair, is that normal ? i'm 19 and i don't think i have diabetes

2 weeks ago
offcourse I ate something else after the teaspoon of sugar. I just wanted to raise my blood sugar level quicly , and sugar seemed like the most common-sense thing

I've gone more than 12 hours without eating and I was fine...did you drink water during those 12 hours? I suggest you call your doctor and at least tell him what happened; he'll decide whether or not to have you go to his/her office and get you checked out. You might regret it later if you don't do anything about it now so why not just get it checked out.