everytime i drink caffiene my body feels really weird and my vision acts up more than it does. But the second i eat something and drink some fluids everything is back to normal. i think it has alot to do with the fact that I will drink alcohol the night before, won't eat in the morning, dehydrated drinking an energy drink, and waiting a few hours later to eat anything, however, my vision has been really sensitive to light lately for about 4 mos now, and my eyes feel better when i wear shades, outside and indoors.....what is goin on with my body????