Dr Samuel my nephew who is 8 years old has come down with some strange symptoms. He immediately lost his close up vision to about two feet, then the vision came back 18 hrs later. He has been fatigued and describes like a rope around his neck pulling him back. He also says that wrist joint and ankle joint pain is coming and going. He says he feels warm but has normal temp. Then sometimes he feels perfect.
Thank you for the question. As per your description sudden loss of vision which returns to normal with fatigue and other symptoms need immediate medical attention. An 8 year is able to tell what is happening to him. Therefore, I feel, he should be believed and taken to an ophthalmologist and a pediatrician too. Preferably sooner the better.