Sounds like Gall Bladder, cholic, its all to do with what you are eating, dont eat late in the eve, avoid fatty foods, certainly cut down the red bull and caffeine , it will ease up, it is the foods you eat and drink that are triggering it, if it continues there are tests to find out if it is gall bladder.Beets and Cucumber help also mint tea, less food. good luck
possible gallbladder,you sounds kinda young?,,,proberbly too young to worry about that stuff,it was prob gas..i wouldnt worry too much