Cat Staring At Wall Sick. It may be difficult to know if subtle changes in your cat indicate a health problem. The odd thing about this is that he is the only one staring at the walls.
Cats with painful backs and hips may have trouble using the litter box as well as they used to. However, it's gotten so bad that we had to move his cat perch away from the router, because we thought he was going to jump on it to get at the wall. Cats are experts at hiding illness.
To your cat, the wall could be one giant jigsaw puzzle that he can’t get enough of.
Does your cat ever stare at the wall in between episodes of seeming mania? You and your cat share the same lower limit of hearing at about 20 hz, but the difference in high frequency sound limits is great. Some other signs which accompanied the staring at the wall, can testify to you that your cat should be examined by a veterinarian. Paris, a 6 year old kitty, had a gigantic (benign) cyst on his liver.