I absolutely agree with Quality Cat Care's answer!  I've had same problems, most of my cat's are traumatized rescues, and Feliway has surely worked.  Cat's are creatures of habbit, so new enviroments do traumatize them. Try this; Take some moving boxes tape them shut, cut out a door and couple of small windows, put a blanket in there that you've sprayed with Feliway. Kitty will feel safe!  And THANK YOU for rescuing and saving a life!