Very lightheaded almost feels like i want to pass out or fall had a mri&ct 6mths ago docs please help don't have high blood presure?

Vasovagal: It sounds like you might have vasovagal syndrome. Be sure that you have had a full evaluation of your heart, brain, and blood. If all of that is normal, then you may have a condition called vasovagal syndrome, which involves lightheadedness and dizziness upon standing up quickly or sometimes due to extreme situations of cold, anxiety, or getting blood drawn, .