Are Blurry Vision, Headache, And A Weird Taste After Drinking An Energy Drink And Skipping Breakfast In A Teenager A Concern?

My son was at school today and said that he started getting a headache and was trying to look at his paper the words look scrambled blurry he said it looks like his arm was at a distance and his mouth started either feeling weird or tasting weird. He s 16 he said he did have an energy drink and he didn t eat breakfast he doesn t want to go to the emergency department I want to take him what do you suggest