My cat found my cancer and bugged me about it until I went to the doctor.
My cat has always like to lay on me and “knead” part of my body with her paws. For 7 years it was random, various parts of my body. Then for about 6 months she started to focus on one spot on my chest. At first I chalked it up to her wanting to be closer to my face, but after a couple months I noticed that the spot she was focused on had become very tender. Then I felt a small lump in that spot. Due to my (relatively young age), it took me a couple of months to convince one of my doctors that it was a potential issue, but eventually I got tested and had a pretty giant tumor in that spot (plus other tumors elsewhere).
Yes, kitty got lots of cuddles, wet food, and Greenies as a thank you.