I often feel airways r reduced while breathing from nose, sinus ct always comes clear, antibiotics help, could this mean i ve infection of turbinates?

Allergic rhinitis?: In order to approach this scientifically you should undergo respiratory studies while breathing nasally and compare to oral breathing. A pulmonologist can do this. If there is some form of nasal obstruction this may often be the result of allergic reactions and this can be assessed by an allergist, testing for allergens, etc. Good luck.