Having had covid itself can leave unknown abnormal lingering cardiac and lung conditions...not just the vaccine.
Even if one’s case of Covid was unknown or very mild in its symptoms.
All my family had COVID. The “alpha” kind. That was more than a year ago. My MIL did die of it but the rest of us - all of us - didn’t even go into the doctor.
We’re not too worried about long-term. It’s already been pretty long. My hubby and nieces have gotten the shots (one niece was tech at Hopkins’ COVID unit).
I don’t doubt your words, but I think, in this case, one also has to look at the timing of problems. It’ll be very strange if a huge majority have even had the shot, vs just the disease.