I have just seen an advert where the person is selling 3 kittens from the same litter, at the moment they are still with there mum and about 5 weeks old, the person is going to sell them at 6-7 weeks. With one of the kittens, they say that he suffers from a spasm called head bobbing and has been checked by the vet who said that it wont affect his life and he is seemingly as healthy and active as the other kittens. Do you think this head bobbing thing could in fact be serious? there are all sorts of answers on google from it being nothing to it being FIP, dont know if this could be infectious to the other kitties. Sorry if its a bit vague I just wondered? Thanks.