Marginal
Chikara Sashimi
Depending on how much caffeine you consumed you might have been suffering from caffeine poisoning. (Unlikely just by drinking cokes since you'd have to chug a ton of cola to manage that since a Coke has 46mg of caffeine in it.) Could understand it if you drank a few cans of that Yerba Mate shit though. 300mg's of caffeine per can in that.
Stress, allergies etc can all cause similar problems sleeping though.
Stress, allergies etc can all cause similar problems sleeping though.