I'm 29 male and ive been getting really bad headaches with a lot of pressure and my eyes cant barley open from the pressure and if my nose bleeds it bleeds bad like it pures out from my nose for like15 mins and when it finishes the pressure in my head and eyes is all gone . and ive have my blood pressure and blood in general check and all was good..... why is this? and could it be a serous problem?