In this session, we will review a case study of a 70-year-old male veterinarian, farmer, and ski instructor (my father) who went from a paragon of cardiovascular fitness to being winded when standing up off the couch. It turned out he had Lyme disease that led to near-fatal heart failure, which was missed by multiple doctors including his PCP and finally diagnosed in the emergency department. He has since made a full recovery, kicked Covid-19’s butt, and is still able to out-hike me (and I run ultramarathons!). Core: Cardiology