Fit, Healthy Man, 38, With Swollen Knee Felt Covid-Like Symptoms for a Month Before Learning He Had Stage 4 Non-Hodgkin Lymphoma

A healthy 38-year-old who began struggling to finish a half-marathon and experienced night sweats, body aches, and COVID-like symptoms learned he was facing stage 4 non-Hodgkin lymphoma. Despite the shocking diagnosis, he plans to remain positive while he fights the cancer.