it feels like fluid or somethi? I am having a very painful stinging headache and i know what might be the cause it feels like fluid or somethi?

Feels like a fluid or something behind my eyes and it is getting worst the pain in my head is very painfull.This has been going on for almost a year already and this is the worst it has got.Ever since i had my wisdom tooth pull i feel pain.I was wondering if the impacted wisdom tooth that is trying to push out causing this.I went to check the dentists they say it is not my impacted wisdom tooth.It is getting worst not stop and i was thinking taking antibiotics or going to emergency room what should i do.Either way i have no insurance right now it ran out.What might be the cause or my severe stinging headache.It is not constant my happened randomly and i cant get any sleep.Got canscan done six months ago see just little fluid in the ear.Does anybody know what might be the cause??Is it cancer,tumor,anything