The family will appreciate your sympathies.
The Right is full of angst on this topic. In fact, there are links to some Covid vaccines and heart failure in women. These
are not the primary vaccines, however, the non mRNA vaccines put out by Pfizer and Moderna.
"Several studies have reported associations between COVID-19 vaccination and risk of cardiac diseases, especially in young people; the impact on mortality, however, remains unclear. We use national, linked electronic health data in England to assess the impact of COVID-19 vaccination and positive SARS-CoV-2 tests on the risk of cardiac and all-cause mortality in young people (12 to 29 years) using a self-controlled case series design. Here, we show there is no significant increase in cardiac or all-cause mortality in the 12 weeks following COVID-19 vaccination compared to more than 12 weeks after any dose. However, we find an increase in cardiac death in women after a first dose of non mRNA vaccines. A positive SARS-CoV-2 test is associated with increased cardiac and all-cause mortality among people vaccinated or unvaccinated at time of testing.
Rare but serious cardiac disease side effects have been linked to COVID-19 vaccinations, especially in young people. Here, the authors find very little evidence of an association between vaccination and mortality, except for in females after a non mRNA vaccine, but show an increased risk of death following COVID-19 infection."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10043280/