Wonder ifs as serious as the ear-ache, dizzy spells and all the other problems she seems to pick-up when she's down in a match and have then resolved themselves for next time.
I don't know about the last two, but I saw the first match, and they picked up her holding her ear between points and appearing to be suffering between games in the first set while she was still a break up. She had the trainer on between sets but didn't appear receive any treatment, just spoke to him.