Our cats became very stressed when we moved to our current house - but not initially. For the first year or so they were fine, until our next door neighbor got two cats who used to be really mean to them. Over the following few years it became more and more difficult. Our cats used to pee on window sills, but the one cat did develop bladder stones from the dry food and lack of activity (she became too nervous to go out), she did end up needing a strict diet of no dry food and a special wet food diet. But when our daughter came along my in-laws kindly offered to have the cats after about 6 months because they could see how stressed the cats (and us) were! Unfortunately even though they live in the countryside our one cat did get run over after 6 months. But the one with the bladder stones is still happy there.....however I cannot stand to talk about her and don't like to see her really - because the in-laws ignored our advice (from the vets) about keeping her food rationed to get her weight down and the importance of using the special diet food and not using dry stuff.....and they have commented saying that she doesn't like the diet food and so is back on unlimited dry food.....very very very annoying but she is their cat now so they can pay the vets bills for the consequences of their actions!