Cameron Smith can’t explain why he’s so lucky or how his fate turned a global pandemic into a blessing that likely saved his life and certainly changed it forever.“I feel great,” the 23-year-old Vikings linebacker said Wednesday, three months after successful open heart surgery repaired a birth defect that would have gone undetected if not for COVID-19 testing when the Vikings reported for training camp in July.“I haven’t hit a low point. I haven’t struggled. Sometimes I feel that’s not fair of me to say because I know some people struggle with open heart surgery. But for me, I just look at Go…
