I own a 2 year old cat who is a domestic longhair crossed with a British longhair we have had no health problems with him until recently he has started to have cystitis that reoccurs for no obvious reason. He is an indoor cat and we do spend a lot if time with him but obviously have to work and do leave him some days I am wondering is this time on his own making him anxious and causing the outbreaks of cystitis? Do cats do better when they have a companion other than human owners? We have tried the obvious things like get a water fountain and increase the amount of wet food he has instead of dry. Does anyone else have any experience of this with young male cats?