Hello,

         I regularly have small blackouts that leave me with head aches.  I also get the shakes alot, feel light headed and my vision some times blurs.

  I don't drink, and eat relativly heathy(Maybe a bit to many biscuits!) and am a healthy weight. 

I go trampolining alot.  Some times up to 5 hours a day.  Could this be my problem?, though I do eat pleanty or is it something else.