Rob은 영업직에 종사하며 자전거 타기, 하이킹, 야외 활동을 즐깁니다. 뭔가 잘못되었다는 첫 번째 징후는 무엇이었나요? 어떤 증상을 경험했나요?

Rob is in sales, and enjoys biking, hiking, and just being outdoors. What was your first sign that something was wrong? What symptoms did you experience?