Is this normal?

could be because your brain is not getting enough blood circulation. my grandma had that

 

Has it happened to you since the first incident?

 

it has to do with the oxygen in your brain and such. A while ago, whenever me and my buddy only had a little bit of weed left, we'd pack it into a bowl and crouch down for like a good couple minutes. then we hit the bowl as hard as we can, pause, and stand up while inhaling fresh air. follow up by holding it in as long as you possibly can. we called that a "squat" and it would get you so much higher than a legit weed hit for like a minute. idk if its just the weed you feel or a fucked up combination of the lightheadedness and high.

the point of my story is that you can use this to your advantage incase your jones'n or whatev

 

happend to me first day of school haha Don't stand up to fast.

 

Many things could have happened, the most likely things to have happened are a seizure or a black out.

When a person has a seizure, they do not remember anything about when it happened, so this is the least likely possibility, as you would not remember the feeling dizzy, etc.

However, when a person blacks out, it is due to low blood pressure, which can cause you to get dizzy, light headed, etc.

Based on what you have told me, I would come to the conclusion that you blacked out, it is probably time for you to pay a visit to your doctor to assure it isn't something serious.