My 13 yr old add has been poorly now for 8 wks. What started as a virus & 2 wks off school, then developed into very bad tonsilitis and suspected Glandular Fever 4 wks ago. The fatigue is terrible & has ruined the summer holidays of a usually active kid. This week his salivary glands have swollen & after a trip to a not very interested Drs & none confirmation of GF from the blood test, both my DD and I are very worried about him being able to go back to school this week. The Dr just shook her head & said I need to contact the school, but with no definite diagnosis, I am not sure I will be taken seriously. I am at my wits end. He is so tired & yet doesn't want to have to miss lessons and fall behind or not do PE & other kids tease him for the way he feels. Is there any advice anyone can give me? Thank you.