question: hello this is in regards to my 6 yr old son.We went to the water park all day Sat. for ten hrs. We ate there and it was very hot outside. We gave him as much liquids as we could. He woke up yesterday and he said his hands hurt. They were sensitive to the touch,little pink,some were kinda hard. He was tired through out the day and even took a nap which was not like him. We thought he was tired from Sat. Late last night he had a low fever. We gave him med for the fever and the pain in his hands. Today he woke up with a low fever but he didn t have it after that. His hands still hurt. So I took him to the doctor and she didn t know what it was. Do you happen to know what this is?