Do you think that I have the flu?

Ok so today I woke up and had a small problem seeing in which my right eye saw some distortion but after a while it cleared up and was followed by a headache; then I started feeling my forehead and it felt too warm as if I had a fever. I looked online on ways to get rid of a headache and one of the solutions was to intake a small amount of caffeine, so I drunk a very small amount of Coca-Cola and I threw it up. After this happened, I looked online for what illness has these symptoms involved (headache, runny nose, fever, vomiting) and the first thing to show up was the flu. Do you think that I have it? Any explanation to what it could be? Any help would be appreciated, thanks in advance.