possible mono symptoms ?

so this morning i woke up and my throat was killing me and my head hurt a bit too. I took allergy pills thinking it was just allergies, because my friend has them too same symptoms. Well it got worse and by the night i cant swallow it hurts a lot, my head is killing me. I had to take a shower because i have work in the morning and in the shower i had the throw up taste in my mouth and was pretty sure i was going to throw up, luckly i did not. I also have the urge to spit a lot. but when i did tonight it looked yellowish but im not sure if it was from the coke im attempting to drink. Right now i just feel totally horrible and hungry but i cant eat because i cant swallow and i'll feel like throwing up after