By Andrew Gould Nelly Korda revealed that doctors diagnosed her with a blood clot. In a statement shared Sunday on Twitter and Instagram, the world’s second-ranked golfer said she went to the emergency room when experiencing arm discomfort following a workout. She is currently at home recovering. “On Friday I was in Ponte Vedra Beach, FL for a photoshoot and a commercial appearance,” Korda wrote. “After a typical morning workout, my arm started to feel like it was swelling. At the advice of my doctor, I went to the Emergency Room as a precaution. I was diagnosed with a blood clot. “I am curren…