My 11 month old DS started off the week being very grumpy/intolerant and off his food. Ended up having a temperature on Monday night and slept badly, Tuesday very grumpy and a couple of bad nappies suggesting tummy bug or I thought maybe teething. On Weds he seemed more cheerful and no temp but rash all over tummy and back and still very tired. (I thought perhaps post viral rash) Anyway, now he's pretty much back to normal (Rash has gone) and was racing around this afternoon at his friend's bday party. He just seems soooooooo tired despite sleeping well and having 2 long naps today.....he's also still off his food although was happy to tuck into a gingerbreadman at the party! What could this be? I'm a real worrier so would appreciate some reassurance.....xx