He has been suffering from a fever and aches in his body, again Hoof. I think this is the third time this season.
Funnily, I was just reading about Mark Cavendish and he has struggled in the last few years with Epstein Barr virus, which has some common symptoms as Oli has.
They are:
Fatigue.
Fever.
Lack of appetite.
Rash.
Sore throat.
Swollen glands in the neck.
Weakness and sore muscles.
Bloody hope he hasn't got that, as I got something similar about 30 years ago, and knocked me sideways for about 3-4 months. Only cure is total rest.