I’m sorry you’re living with that. COVID took my plumber neighbour out for three weeks every time and he was fairly fit. He had a hell of a time and went through it twice.
You’re at best very tangential to my point. I’m not disputing that COVID happened. Just that flu probably continued at some or similar level, whereas the stats disagree. I can only conclude that all flu of late is, in fact, COVID; IANA specialist D.
Anything that attacks the respiratory system long term sucks. Breathing has been quite helpful to me during my life. YMMV.