Hello, I've always had allergies, however i woke up one morning four months ago and my nose has been constantly blocked since along with pressure around the top of the nose, ive also been experiencing fatigue and irritability, symptoms are constant literally 24 hours a day regardless of whether i am around dust or not. In the past, i wiould only have stuffy nose, sneezing etc but would subside once i was away from the allergen. My sinus cat scan recently was clear, so i am kind of confused could an allergy trigger a sinus infecton or could my allergy symptoms just be worsening? My doctor wants me start allergy shots soon but i'm not too sure if this would help if it was an infection..