NEW : Diana Nyad : ` ` Nobody decides the swim is over except me '' I 'm standing here at the prime of my life , '' she said Sunday as she prepared to dive into the water at Havana 's Marina Hemingway . She struggles through ocean swells , shoulder pain and asthma . She is attempting the second crossing from Cuba to Cuba without a shark cage . Nyad began Sunday 60 hours and hopes to swim the 103-mile span in night .
NEW : Diana Nyad : `` Nobody decides the swim is over except me '' She struggles through ocean swells , shoulder pain and asthma . She is attempting the second crossing from Cuba to Cuba without a shark cage . Nyad began Sunday 60 hours and hopes to swim the 103-mile span in night .