I'm not a medical professional, and I know vaccinations can be a divisive topic, but I'd like to share another Covid case that was happening during the same time-frame as my husband's illness.
Our 60 year old neighbor was hospitalized with Covid on Dec. 26, 2021. When my husband (age 70 at the time) got Covid on Dec. 29, my neighbor's wife and I would talk or text every couple of days.
Prior to contracting Covid, our neighbor was a strong, healthy guy who loved hunting and fishing. He chose not to get vaccinated. He passed away from Covid on January 20, 2022.
We are thankful for the vaccine, especially with my husband's heart issues. He has had several echocardiograms this year which indicate Covid had no effect on his valves.
We've relaxed our precautions to an extent. We visit with close friends and family (after inquiring about their symptom status). We try to avoid crowds (especially if we don't know the people).
I was glad to read you are vaccinated and boosted!