Anytime I drink something that has sugar in it I always seem to get a upset stomach that keeps me up all night miserable and a weird feeling in my throat where it feels clogged and needing to burp. I toss and turn all night it takes me forever to fall asleep but the next day I feel better. This all started when I would get a large sweet tea from McDonalds 7 years ago, lately it has been getting worse, then I could have two sugary drinks or more now it‵s just one and i‵m miserable. what is wrong with me? am I allergic to sugar or a diabetic, what is it?