Why do I have sinus symptoms in spite of the fact the CT scan shows no sinus opacification?

I had sinus surgery three months ago because there is sinus opacification in left max sinus.now there is no opacification in the sinus and I have no allergy. I have symptoms like facial pain and pressure,ear pressure,dry air. for years, I thought it was sinusitis that disturbed me. but it seems not to be so. I could not convince the doctor that I have problems with it. he said that this can be psychological. you are very healthy. may I have atrophic rhinitis or any kind of sinusitis?