Everytime i drink caffeine, i get a nose bleed. i dont know what's wrong. When I drink Sprite, I feel fine. When I drink Coca-Cola (or even worse.. Bawls, Sobe, RedBull) I get nosebleeds. When I drink high-caffeine drinks (Bawls & Sobe) I get nose bleeds at least twice a day for the next three days. I don't eat a lot of sugar. This has been going on ever since I can remember drinking Coke... 4? Any ideas?