Im 15 years old and this has only happened to me about
3 times in my life and it has always occured in the morning while standing or being active for at least 30 minutes. I gradually get dizzy or lightheaded and my vision begins to blur to the point where if i dont sit down, i cant see after about
10 minutes. I also get a cold sweat and a prickly feeling in my head. Is this a migraine aura, or something else?