sinusitis?
 

hi all: had some sort of flu or upper respiratory infection, that turned into sinusitis. most of the symptoms resolved but i'm still having some nasal discharge. the thing that worries me most is the *extreme* fatigue i'm feeling, dizziness, sinus pressure, brain fog. it has been over a month.

could these be related to prior head injuries or is this some sort of infection? saw an ENT and they just said wait it out. any thoughts?