Great question Georgi, I've been wondering the same thing.

Zander's been a bit off, his cheeks a bit ruddy and crying out of character - cant see anything, but drooling heaps and chewing with vigour (but chewing normal for this age too.
Hmm you've just described Xander too... but I don't know whether it's just a response to vaccinations.... but ruddy cheeks for sure, but he doesn't have a temp or anything.