It was just terrible though .. the fact that you want to sleep because you 're tired but at the same moment you have this terrible feeling in your head . Its a little indescribable . The next day , It reached up to 39.2 degrees when i went to the doctor .. And i think it was even higher before i went there .. I felt really really terrible at that time .

Give answer the following question using evidence from the above passage: What may be the reason for them going to the doctor ?
They needed to get treatment for a fever .