matt buzzes when he chases bisc round... and also makes noise when he is snuffly.
bisc doesn't make any noises, again just snoring/wheezing etc when he is sleeping, respiratory problems.
i remember just after they had been neutered and bisc was buzzing so loud chasing matt, i didn't know about why then and ended up at the emergency vets telling them he sounded like he had swallowed a bee! :lol: