Well ihavent been eating that much tbh and im wondering if being ill like that was because of my eating habits?
Also i hadnt really been drinking water that much (not deliberatly i just forget.)
So could it have been dehydration or the eating thing?

Before it happens, I start feeling very sick.  I feel nauseous, and my stomach starts to hurt.  And then... boom, I faint.  I only pass out long enough to hit the floor (and thankfully all 5 times I've been caught somehow, or otherwise hit something to help break my fall).  But when I wake up, I'm a bit wearker, and I'm shaking a bit.  I don't know about beforehand, because I feel too ill to have my brain work properly.

Anyway, it's quite possibly dehydration, or low sugar or the like.  If you get that way again, get something with electrolytes to drink.  Drink juice if you can, or even gatorade (watering it down might be better), and preferrably warm too.  And if you ever feel like fainting, put your head between your knees and sit down.  And otherwise, something I do is pinch my upper lip really hard to keep me from passing out.

I dunno, so it's possible that's what it was.  If it's happened before or happened again, you may want to talk to a doctor, or otherwise just make sure you pay attention.  Because the dangerous thing about fainting is possibly hitting your head on the way down.  I fainted on pavement, and luckily ended up with only a bleeding knee (someone half caught me, so it wasn't too bad)