My son just finished getting over the flu. It started last weekend, he was tired and napped Sat. and Sun. (he's 8 btw). Sunday night he had a high fever. Monday we went to the Dr. - sure enough flu. Fever was high for a few more days, very exhausted, not eating much at all, cough getting worse. He was better mid week for about a day (not great but better). By Friday the temp. was back up and the cough worse so off to the Dr. again. Still just the flu, nothing on top of it. By Saturday, he's was just about back to normal and today, he's back to himself. It was a very nasty week - luckily no one else got ill. Flu shots for everyone next year and I'm taking my oldest tomorrow to get one. Dr. said it wasn't too late to get the vaccine.
I hope you are feeling better soon - it was a long, miserable week for us.