Why has Iver started to snorting?

[The Boss]

Fudge does this with excitement when she first gets outside for her walk....she gets some strange looks from passers by

[Tania]

Molly does this only occassionally now, it was becoming a problem, sometimes we were unable to sleep because of the racket, she sounded like a pneumatic drill. I have got her weight right down now, this has made a huge difference, so this may be worth considering in addition to the advice above, if your cuddly cavaliers are carrying a few extra pounds.