Debbie, I hope nothing serious is wrong with CJ! I noticed on your videoes that he was going around all over sniffing a lot to the carpet. Could it be that he can still smell Tubby? That could also be the reason for wanting to mark his new territory - which I think is what he does.

I have seen Fister do the spray motions with his tail, but nothing came out - except when he had the UTI and wanted to to tell us. But at that time, he sat and peed on our bed right in front of us, and looking at us.

Good luck finding the cause and a solution.