I once had a cat named Cory, he was an orange tabby cat and I loved him to death. I had him with me when I use to live in Maryland and Georgia. He was my cat and he didn't really like anyone else in my family. Then one day, I was living down in Georgia at the age of 8 and Cory began to have mouth cancer. I can't remember how long later, but we had to go to the vet and put him down. I cried some much there that the veterinarian tried to give me a stuffed cat toy to keep me quiet.
About two years later, I began to notice things happening around the house in West Virginia.
One time, I thought that I saw Cory go under my bed, but I didn't see its face. I've also thought I saw him coming out of my room while having dinner. This one though is probably my most physical experience: I was sitting on the couch in the living room. It was about October and I was watching TV with a blanket and a pillow on top of me. While I was lying down, I saw Cory on top of the pillow smelling me and looking at me. I could definitely tell it was Cory. About 5 minutes later, I moved the pillow off of me and he disappeared. About 10 seconds later, the couch makes a dent and springs back up really quickly.
I have seen him so many times since his death. I think he just loves to follow me and be with me.