Yes, I still have some. I lived without carpets for some years, but I didn't really make a difference so I decided to put them back.
Maybe it's not the carpets but the flats I lived/live in. Since around that time it started I moved to my first flat in an old building. Since then I moved two times but always to similar flats with the same old wooden floorboards and high ceilings. Maybe it's the brittle stuff between the floorboards that collects the allergens.
It's apparently slightly deviated, but my doctor says it's not strong enough to negatively impact my breathing. Nevertheless he said I could get surgery if I want to, but with no guaranteed improvements. I think this should be my very last resort.