I do not your age and your loss %, whether the aid is only hearing
sound enlarging device or digital with
speech fine tuning provision. Also whether u r a regular user and the working (sound) environment. These are some of the contributing factors for sound.
As for ur sinus, it can block ears. Wax in ear also contribute for ear loss.
You may preliminarily try steam inhalation - to get relieved from your blocked ears and clear wax, if any, without damaging the drum. It may help u partly.