Four in 10 Americans say they've had at least one heart-related issue during the COVID-19 pandemic, and about one in four who have tested positive say COVID has affected their heart health, according to a new online poll. Shortness of breath (18%), dizziness (15%), higher blood pressure (15%) and chest pain (13%) were the top problems reported in the survey of 1,000 American adults. “An October 2021 FDA paper says ...