I wish someone would do a wide antibody test and study of those who thought they had it earlier.
My wife and her boss had a very severe case of what we though was the flu in January, even though she had a flu shot and another case of flu in in the previous fall. After the January sickness, it took her several weeks to kick the cough.
Although I never took any extraordinary precautions around her and I was out in public often even during lockdown, I never had any symptoms. I was healthy all winter. I would really like an accurate antibody test.