Do i have mono?

Well what happened was is that i played truth or dare (im 14) and i had to kiss two girls on the lip (they weren't make outs just pecks). Well that night I woke up with my stomach hurting at 4 (It might've been cuz I ate a LOT and had a lot of soda). Then I got a very congested nose, i had a little trouble breathing, a little bit of coughing, little headaches, and my ears feel weird (but thats bc i went on a mountain and i might've gotten my ears popped and stuff). Anyways do I have mono and what happens if I do? Will it affect my life drastically?