PLEASE diagnose me! :(?

So it all started a week ago when I drank mt dew white out I kinda felt weird like dizzy and just slightly off balance and like just strange, also very tired. So I thought I was just having one time thing but after I drank mt dew the next day at school it happend, so I thought maybe the caffiene so I tried normal soda. Still same effect on me so I tried some sour gummy worms and I was kinda starting to get that feeling again, and I was like having thoes mini regurgitations of the sour in the gummy worm too, I regurgitated it around 4 times it's not throw up though, I don't understand, I've eaten a ice cream malt the day before and I was alright!? What is Wrong with me!?!?