Random light-headedness, any ideas on cause?
The problem: a few times a month out of no where I will feel completely light headed and almost ready to pass out, but never do. It lasts for maybe 30 seconds to a minute then subsides.
About Me: I am 22 and extremely healthy. I come from a family of high metabolism (we are all really skinny), I exercise nearly every day (playing a sport or treadmill), dont smoke or drink ever, and eat very healthy (fruits, vegetables, never fast food, barely drink pop, etc.). No stress at all as I have a great job and no problems what-so-ever besides this random "I feel like I am going to faint" feeling.
Extra Notes: This has been going on now for say 2 months, maybe 8-10 episodes total. I started recording when I get the feeling and some observations that could help in diagnosing are:
1. Several instances have come after excessive caffeine (pop, starbucks) and on the flip side today it happened after not eating breakfast, lunch, and walking out of a movie theater after a movie (2:30 in the afternoon).
2. It has happened in the middle of the day or in the evening but never just before bed, middle of the night, in the morning. Also I am ALWAYS out of my house, ie always out doing something when the 30 second episode will hit.
3. I stopped taking my daily men's multi-vitamin and also stopped taking my calcium pills but to no luck. So nothing is entering my body besides my regular food.
I am going to go and get my regular checkup and have my blood checked from my doctor here in the coming month so no results to relay there yet.
Any ideas appreciated.