You said you drank a "fruit drink" which leads me to believe it was not fresh fruit juice but rather some boxed/bottled drink that has been devitalized. Do you have this same experience with FRESH fruit and juices? Perhaps small amounts of the fresh juice mixed 50/50 with water?
You should probably avoid "fruit drinks" colas iced teas, etc. as they are not good for your health.
Hope you figure out something that works for you!