You should be drinking Gatorade/Powerade after any physical activity. You need to replenish the lost electorlytes and Gatorade/Powerade do that. Like people have already said, do not drink it before. It could be the main reason.
Before running, drink water throughout the day so you do not get dehydrated. Keep drinking water while running also. Do not drink a huge amount while running or just before. Drink enough that you do not get dehydrated.
While running, I have found putting your hands on top of your head works great. If you can stop, then stop, stand up, and put your hands on your head. It will be gone in a little while. If you are playing in a game and this happens, then you either run through it or shift off.
Hope that helps!
