, the independent observer for the International Swim Federation who is accompanying the expedition , says that swimmers have a much better chance of success if they can make it through the second night . '' There was a bit of excitement early Saturday afternoon . An oceanic whitetip shark swam near Nyad , but a diver on her team faced it off and it meandered away . The swimmer improved her performance late Saturday morning after struggling to maintain her usual stroke rate , her support team said . Fortified by chicken soup , Nyad was making good progress until the Saturday evening incident . `` This afternoon -- it is stunning to actually witness -- Diana is swimming stronger and stronger , '' one post said . `` Her strokes are up to 50 per minute , she is eating pasta , gobbling bananas , bits of peanut butter sandwiches , along with high-carb & high calorie liquid concoctions . '' The going was rough before dawn Saturday , when Nyad had stopped her freestyle stroke and complained that she could n't breathe properly after getting stung . Doctors from the University of Miami gave the swimmer a
-LRB- CNN -RRB- -- Endurance swimmer Diana Nyad was stung by a sea creature for a second time Saturday night and was being treated by doctors , her team said in a blog post , leaving the continuation of her swim in question . The 62-year-old , in transit from Havana to Florida , was stung by some kind of presumed jellyfish , the blog said . `` Her face and eyes and the area around her eyes are affected . She is out of the water and aboard the transom of the Voyager where she is being treated by doctors . It will be up to Diana to decide whether or not to continue to the swim . '' The incident was another setback for the athlete , who was stung by Portuguese man o ' war earlier in the day . At 6:30 p.m. , Nyad was 49 miles from Havana . Having passed the 24-hour mark , she was entering a critical time in her quest to cover the 103 miles . `` Tonight , her second night in the open water , may be the most critical , '' the team wrote . `` Steve Munatones