I don't know whether he has blockage or not. He has swallowed a sock ! and usually he regurgetates it after a while but I havn't seen it yet but that doesn't mean he hasn't. He is pooing and weeing normally and he eats but he is licking himself all over a lot. Sorry but don't know if any of that is linked or relevant, but before I ring a vet and spend some money I'd like to know what it might be. If anyone knows or could refer me to a site or something I would be grateful. Ta!