Hi you seems to have chtonic infection of uour sinuses.
This csn csuse nose block, headache, trickle throat, cough, ear psin, fever, facial psin etc.
Get your blood test
to rule out infection.
Get CT Scan of nose and sinus to rule out sinusitis
. Consult doctor
Untill then take paracetamol
and decongestant tablets.
Do steam inhalation at least 3 to 4 times per day.