Hi, this is my first post and I'm looking for some advice on a problem we seem to have with our 2 year King Charles Cavalier, Pebbles. Every 3-4 weeks she starts eating grass, has a rumling stomach and seems to be off her food. This seems to be a cyclic event now. She does have a fondness for paper tissues, socks etc. We have tried to make sure nothing like this is easily accessible but she seems to find something to chew on...! Is this something that other owners have come across, does the breed tend to have a sensitive stomach..? any advice would be welcome.