You're not alone in your experience. Since he passed away a year ago, Chessie has come back to visit either Casey or myself (in one case both of us) at least 10 times that I know of. On three of those occasions, I've felt whiskers and breathing on my hand, foot, or leg and looked expecting to see Casey or Smokey but instead not seeing anybody. Even though he's supposed to move on to wait for me and Casey, his visits are welcome since this is always his home.