saz_saw

lately ive been getting really dizzy i call them "head rushes" but after a while... everything goes black for a few seconds... i thought it was because i got up to fast, but sometimes they just hit me when im standing up in general my mom said that i probably just need to take my vitamins [because im vegatarian, she thinks that is a reason] i do take them everyday... but the head rushes keep on coming... and they are getting worse. ive blacked out a couple of times and completely fallen over... and when everything clears up, and i see fine, im in a different part of the house... like i was heading to my sisters room... and i black out and at first i dont even remember why i am in there! i havent told anyone about me falling over... i dont know what to do! i hate to say it.. but its starting to scare me... how do i prevent it?